= ANUUNNIINI 299 THS LIBRARY Michigan State University MSU RETURNING MATERIALS: Place in book drop to LIBRARIES remove this checkout from yo your record. FINES will be charged if book is returned after the date Stamped below. A CONSIDERATION OF THSZ FACTORS OF A CITY WILK ORDINANCE. by ~~ J. CARLTON HURLEY > 1913 SUBMITTED AS A THESIS FOR THE DEGRES M. 8. A Consideration of the Factors of a City Milk Ordinance It has been truly said, if not artistically expressed, that “the milk problem in America today is perhaps the toughest of all of our pure food and public health problems.* It is one which con- cerns every human being. It has furnished abundant material for periodicals in the way of cartoons and popular reading. Usually such articles claim to contain the solution to the entire problem but in most cases the writer has grasped but one strand in a com- plicated and extensive system. In most cases such writers oan be forgiven their conceited efforts to proclaim their solution of the problem. Any one phase of the question is so far reaching and extensive ae to successfully prevent any one individual from graep- ing the problem in its entirety. In the "Survey" in 1910 appeared an article dealing with the milk question entitled "Put the responsibility on the right shoul- ders." It was very brief but was a surprise in that it did not place the responsibility on the shoulders on which it is popularly supposed to rest. The writer was one of the adwance guard on the milk question and had discovered that the responsibility rested only to a slight extent upon the shoulders of the farmer but quite heavily on those of the consumer. The health departments through- out the country have been quite tardy in grasping this idea and have quite uniformly adopted milk ordinances which embody non-sens- ical clauses and unattainable requirements. Dr. Charles E. Varshall ably and correctly states a present day fault where he says: “We preach what we do not know, we expect ideal conditions where only 101°755 fair are possible, we advocate the things of the millenium when we are just emerging from barbarity. It is the purpose in this article to briefly consider the factors most commonly entering into city milk ordinances. This makes possible the treatment of an immense and almost unstudied field but I wish to narrow my subject still further and consider these factors from the producer's standpoint. This side of the question has received but little attention, it seldom comes to light, and is less understood than that of the consumer. Very few facts have been compiled in regard to it, largely due, perhaps, to the lack of organization among farmers and the application of scien- tific, business like principles to the business of milk and crean production. cent butter fat.* Each state adopts standards of its own for the percentages of the constituents of milk and cream, and most cities adopt these stanc- ards for their milk ordinances. This particular ordinance, which I am quoting, would receive milk which might be seized by state i:- spectors as watered milk, as the Michigan State Law will not alls" milk "by weight to contain more than eighty-seven and fifty one hundreds percentum of watery fluid." This section would also viol::: the Mihm igan State Law in that the law specifies that milk is nct "to contain less than twelve and fifty one hundredths of milx solic: per centum.* Most of the cities of Michigan copy the state standur’ in their ordinances or make the requirements more stringent. The state standards as quoted above, together with the requirement th::t there must not be "less fat than three per centum," are about the average percentages for ordinary milk. Such a standard, therefore, is no hardship to the producer, but is, rather, a protection against the practices of the unscrupulous milkman, (11) “When milk or cream shall contain more than 200,900 bacteria per cubic centimeter if milk and 500,900 per cubic ceniti- meter if cream, on two successive counts from samples collected by some member of the board of health, or a duly authorized rep- resentative thereof.® This section has become of so great importance to members of nearly every board of health that they have one and all been led far astray. That which should only be taken as an indication of cleanliness has been adopted as an absolute standard. The method of counting is inaccurate at best and besides we should not be so much concerned with the number as with the kind of bacteria found in milk. "*In the interpretation of the results of the numerical deter- mination of bacteria in milk, it must be constantly borne in mind that the results indicate only conditions at the moment the sample was taken. We are not dealing with the quantitative estimate of a milk constituent like fat, which is present in the same proportion in a given sample at all times. It must be remembered that a bac- terial count is a measure of the progress of mltiplication of a complex mixture of micro-organisms, controlled by an equally com- plex series of factors. The results at any given time depend in part upon initial numbers, species, characteristics of the milk, *Ward; “Pure ilk and The Public Health." its age, the temperature at which it has been kept, and the method of making the determination. Wrong conclusions will be reached, if emphasis is laid upon mere numbers without a consideration of the other factors. A numerical determination taken by itself without full consic- eration of all the factors involved has no value. fFersons not fa- miliar with the circumstances are apt to attempt to make compuaris::s where such are inadmissable. The results of the work of two labori-- tories cannot be compared, unless there has been uniformity in ever; detail that would affect results. Every bacteriologist doing muc:i milk work has had embarrassing experiences along this line. The wan wno has had the longest experience with numerical determinations of bacteria in milk in connection with miik commission work believes that no good end is served by stating results pubsicly in numerical terms, and acts in accordance therewith. The vacteriai count is unuouvteday the instsument by which the effectiveness of good dairy methods is measured, and has been a prominent factor in the development of those methods. [t reveals facts regarding the operation of higt grade dairies that no inerec- tion could disclose. A count of certified milk is better evidence of observance of certain features of cleanliness in handling the milk than a visit to the dairy. * "© While the germ content may we regarded as a general index to the care the milk has received, it may not at all indicate its whole- someness. A high count may be the result of the rapid growth of * Marshalls: *® Micro-Bilology.*® the lactic bacteria, in which case the milk may be perfectly safe and wholesome. Qn the other hand the count may be quite small but contain pathogenic species. The bacterial count is valuable as showing the sanitary conditions of production and handling, but much care should be used in the interpretation of such results. In some ways a direct microscopic examination of the milk sediment is much more satisfactory. The skilled analyst can recognize certain types and species which may indicate the sanitary quality of the milk, With sufficient experience one can recognize streptococci, B. subtilis, organisms of the B. coli type and some of the putrefac- tive species and leucocytes. The presence and abundance of one cr more of these groups may indicate the nature of the original con- tamination and the existence of diseases in the udders of cows. If rightly interpretated the information thus obtained is of much val- ue. The weakness of this method lies in the fact that it is not always possible to recognize the above types of organisms. Ina smear preparation it is not p@sible to differentiate between patho- genic and non-pathogenic streptococed or between B. coli and certain other types. The presence of unusual numbers of streptococci and pu cells may indicate the existence of disease in the cows and when this condition is found in the city milk it is possible to trace it back to the farm and locate the diseased cow and prevent her milk from being used for human consumption.* Slack has observed that, in connection with his method for the study of milk sediments, the number of bacteria may also be roughly estimated. By a long series of comparative tests, it has also been found possible to tell from the number of bacteria in the smear whether or not plate cultures would show above or below 500,000 colonies per.cc. An error of less than 1% was made in this regerc. He uses the test to eliminate those samples of milk that are well within the limit, and thus saves the trouble of plating them. The committee of the American Public Health Association in its 1908 report makes the following comment. Several laboratories are now making this examination as a routine procedure. One work- er (Conn) , who has done considerable experimentation along this li during the past year, sums up his results in attempts to actually, approximate plate counts as follows; ® *The method seems to be fairly satisfactory for milk, the bacterial content of which is not too low or too high. When the numbers are down below ten thousand the method seems to be quite inaccurate, and when the numbers run up into the millions, I find also the numbers are not vwery reliable. Within the limites of from thirty thousand to three hundred thousand, however, the method seems to be fairly good. I have, however, had the experience of occasionally finding samples of milk which, when tested by direct microscopic method,‘ gave results very different from those by the plate method. My general feeling is that a direct microscopic method might give an idea as to whether the sample is very good or very bad, but would not replace the plate method of examination in determining actual numbers and would be of no use for the examin- ation of samples of milk whose number of bacteria is quite low. * another (Campbell), who has done much work with this method, finde it chiefly useful as a preliminary test, not plating samples e Ie 4 t , . t . ‘ : _* o? A, oa ‘ — - . ~ . 4 . wa 4 +> ~ » r . - . wt ’ - ~~ . . , ‘ ~ ey . . 1 - ’ , at . an » rT . . e which are shown by the microscope to contain less bacteria than the city regulation permits, in those samples which are plated it serve: as a guide for the proper dilutions. He finds it possitle with this examination to correctly state in nearly every instance when a mick contains less than 50,000 bacteria to a cubic centimeter, or when it contains over a million bacteria to the cc. On actual estimates within 50,000 of the plate count his average is 66% correct on count between 50,000 and 500,000, and 50% correct on counts between 500,(C and 1,000,000.® The quotations from Ward and Marshall reveal fairly the atti- tude of fair minded bacteriologists toward the accuracy and value cf bacterial counts in milk. The reader can readily see that it is 1st a method of mathematical accuracy and i8 18 not of definite value. The comment quoted from the 1908 report of the committee of the American Public Health Association should show the reader that the methods of counting are still in the experimental stage. The plate method of course is the old method and is completely developed but it is cumbersome, takes a great deal of time, and, if truth is tolc, is far from accurate. To one, therefore, who holds this attitude, the standards fcr bacterial counts in milk do not mean much. A little study will ehov that the health commissions of different cities disagree on the nir- vers of bacteria which can be safely allowed. Indeed, a little study will show a wide variation in the bacterial count allowed by any one city at different times. This would seemingly indicate that the bacterial count is not a matter of life and death to the extent which some health commissions would have us believe; The experi- ence of some cities has shown, too, that it is not a matter of econ- omic consideration as to whether the count is high or low. The kind of bacteria in milk is equally as important as the number. Th: tendency is beginning to prevail in some cities of combining the quantitative and qualitative analysis, and the results thus obtains: in the hands of the careful worker are of much practical value in controlling the quality of the city's milk supply. (12) "When milk or cream is kept in any place not screened from flies or protected from fowls or animals." It would require but very little expense for one to fit his milk room to meet this requirement. The satisfaction resulting should be ample reward, while in addition it would mean increased protec- tion against disease to the producer's family. Probably few men who realize the value of a milkroom sre so short sighted as to leav it unprotected from fowls or animals. Screening against flies, how- ever, is an entirely different matter. A great many people think that the cool temperature of the milk room will keep out flies, and it will to some extent, but occasionally the temperature rises or a threatening storm drives them in. Once in they bring a thousand troubles in, too. They may have just left the manure pile in the barn, the edge of the cess pool, or the carcass of some dead and decaying animal. If so the sticky pads on their feet are covered with millions of filth and disease germs. Their feet come in con- tact with the milk as they go to drink and these germs are released in countless nunbers to develop rapidly and uncheoked, because of the low Sexperatuts in the milk. Primarily the screening against flies is a caution for observ- ance by the producer. It goes still farther, in reality, and in- cludes the consumer. The fly which enters the city home is just «és much of a muisence and is just as filthy and dangerous as the countr; fly. He may have just left the garbage can, the city sewer, or some- thing even worse. He can pick up typhoid germs in the city and de- posit them in the milk just es easily as elsewhere. In this case an investigation would prove more difficult but if once made could reveal the truth. “Suspicion, however, would be thrown upon the milk- man. The milk supply is always the first suspected source of ty- phoid but not rightly so. (13) “When milk or cream is bloody or stringy.* Bloody milk is usually the result of a physical injury of the udder or teat and is not dangerous for consumption, but if detected the milk naturally becomes an unpleasant food. Stringy or ropy creem is due to an organism, B. lactis viscosus, which grows with great difficulty at blood temperature and is, therefore, not a pathogenic germ. *"These organisms grow most freely in the presence of an abun dant supply of oxygen and for this reason the cream usually becomes slimy before any changes become apparent in the underlying layers of milk, Representatives of this group are quite resistant to heat and frequently pass uninjured through the methods of cleansing @4d scalda- ing used under ordinary creamery conditions. Because of this, dairy utensils once infested become a constant source of infection. “Nei- ther bloody or stringy milk or cream, therefore, is injurious, and, though it is quite difficult to avoid, it is reasonable to legislate against it. *W.A.Stockin in Marshall's "Microbiol: (14) “When the room in which the milk is cooled or stored is im- mediately connected with a stable in which animals are kept or confined." An ideal milkroom should at least be separated from the barn, but ideal conditions cannot be expected on every farm. In very many cases a milkroom is a part of the dairy barn but is partitioned off from the rest of the barn. Undoubtedly such would be suitable in most barnes if sufficient care would enter into the work and mater- ial in building the partitions, Even with ordinary partitioning, I think, the attached milkroom is satisfactory. If the feeding is not done until the milking is finished, and if the stables are kept clean, then the contamination must largely result right near the cow while she is being milked. By using the covered small top pail contaminatl on cannot readily occur in carrying the milk from the cow to the milkroom. Within the milkroom the air can be kept in circulation, and will then be fresh, end this in connection with a low temperature will make any milkroom suitable. Under such condi- tions, and with tle door connecting with the stable always kept closed, no inspector's edict, based on any of these @ nditions, can render milk "unclean, impure, unhealthy, unwholesome and adulterated Other factors generally included in the milk ordinaces and whic denote a trend in the right direction are as follows: « The milk or cream furnished by every hotel-keeper, restaurent keeper or boarding house keeper, to his, her, or their gue sts, ehall be in all respects up to the standard herein sped fied, cth- wise such hotel keeper, restaurant keeper or boarding house keeper shall be liable to the pains and penalties of this ordinance." Any dealer or producer in milk or crean who sends his, her, ite, or their product to the city of for consunntion in any form, and receives compensation therefor according to tre percent of butter fat as shown by a test or tests made by such .:: ducer or dealer, is hereby required to make such test or tests accurately and correctly, and to accurately report such to tne cu: sumer. * Skimmed milk or sour milk may be handled or sold if kept in utensils plainly marked. Skimmed milk shall conform to the st#u'- ards of purity and temperature required of sweet milk. A license must be obtained before buttermilk can be sold in the city of . All buttermilk shall be manufactwed from pure cream or milk, and snall be kent, handled and sold in accorc- ance with the provisions hereof made for keeping and handling milk or cream. All milk, crean, buttermilk or skimmed milk sold or offers: for sale in bottles must be bottled at the dairy house, creavnery or milk depot, and must not be put in bottles while on the road. The handling of milk cans, bottles or other vessels in which mils. cream, buttermilk or skimmed milk shall be delivered to or frou the place of delivery, in wagons used for handling manure or svil1 or any other unclean vehicle, is expressly prohibited. Bottles used as milk, crean, buttersilk or skimmed milk containers must not be used for other purposes. It shall be the duty of the inspector of milk to file a co-- plete record in writing of his proceedings as inspector, giving 3 full and accurate account of all inspections made, and of sanples collected. No ticket in exchange for milk or cream shall be used a sec- ond time, except metallic tickets which may be used continuously provided they are sterilized before passing out for use a second time. No person, firm or corporation, shall sell or offer for sate, expose for sale, or keep with the intention of selling, any milk or cream at retail unless the same shall be kept in a tightly cov- ered receptacle or sold in bottles. The milk or dairy inspector, the health officer or any other person authorized by the Board of Health, may examine all dairy herds, utensils for handling milk, of all dairymen or other per- sons engaged in selling or shipping for sale milk or cream. These inspectors shall have power to open any can, vessel or package containing milk or cream, whether sealed (locked) or otherwise, and take samples of the milk or cream for testing or analysis; and if, upon inspection, the milk or cream is found to be filthy, or the cans or other containers are in an unclean condition, the s-id inspector may-then and there condemn the milk or cream as deemed by him to be filthy and pour the contents of such bottles, vessels or package upon the ground forthwith, and he shall, if done in good faith, be held harmless in damages therefor, in any suit or demand made. It has been charged by many producers in a number of section: contiguous to Detroit that often times these inspections were unfai and were made by incompetent men. As a measure of mutual protectis local organizations of dairymen in different sections of contiguous territory eprang up. A general organization was later consumated, and after a time this was reorganized and made to include practiczl- ly all of the local organizations. This was known as the Mutual Deirymen's Association of Detroit. It numbered over eight hundred members and represented between nine and ten thousand dairy cows, the milk from which contributed to the Detroit city milk supply. There has existed since this organization considerable friction between the association, the local board of health, and the milk dealers of the city of Detroit. As a result the Association has presented a bill to the State Legislature which has a strong bearing on the sentiment of the last section quoted above, and reads as follows. Section 1. Any city board of health or its agents or inspec- tors shall have the right at any time to inspect the barns, milk rooms, milk pails, and other utensils, also the cattle of any per- son or persons, firm or company producing milk or cream for city consumption, and also all milk depots, shipping stations and ap- pliances connected therewith. Sec. 2. Any producer or shipper refusing to allow such in- spectors to inspect their premises, barns, cattle and utensils shall be debarred from shipping milk to said city, also any owner of milk depot or creamery refusing to allow inspection shall be debarred from shipping milk to such city. Sec. 3. All agents or inspectors appointed by city boards of health to inspect the buildings, cattle or premises and uten- sils of producers shall have had at least two years experience in managing or working on a dairy farm after having reached his majority, but any city health board who shall have inspectors do- ing such inspection when this bill goes into effect shall replace such inspectors by inspectors of the above qualification as Rete One inspector inside of ninety days after this act goes into ef- fect and one additional inspector each six months thereafter un- til all such inspectors are qualified as above. “The Mim igan Farmer" said in part in discussing this act; "It is said upongood authority that the board of health is prepar- ing to make a strenuous fight against the enactment of this proposed legislation. As a matter of fact, to one who has observed this con- tention from the outside, it would appear that there are just ground for dissatisfaction among the dairymen. There seems to be plenty of evidence of incompetence on the part of some of the inspectors, «at least, although it is stated upon reasonably good authority that the board of health has sought to make an improvment in this direc- tion. Also, there is no doubt that those who have this matter in charge in the city health department are less able to give compe- tent inspection that would be a class of inspectors coming up to the qualifications advocated by the dairymen.* This act, namely, the Downing Bill, and the criticism called forth by it in the “Michigan Farmer" are in the right direction. Inspection is all right but it must be done by competent men. The Mutual Dairymen's Association of Detroit by their action plainly Say as much. An inspector may have the right to pour out milk which he sees fit to condem and he may escape demage for it, but he will never win the cooperation of the producers for a progressive move- ment. If aman possesses the qualifications demanded of an inspec- tor by the Dowming Bill he will likely possess the good will of most dairymen and to have tact, judgment and sense. This is in brief an enumeration of the more important factors of a city milk ordinance and a hasty consideration of each from the standpoint of the producer. There is one factor, however, which is particularly concerned in present day milk legislation but which is not likely to be solved until some distant date. That factor is tuberculosis. Before its importance and far reaching effects were realized, it was enumerated among the ordinary chance diseases of the dairy cow. Now emminent scientists believe bovine and human tuberculosis to be identical, or at least that the bovine type is transmissable to man, and it has become a question of world wide consideration. The cities of Mibizgan which have awakened to a realization of the local importance of the milk question were not at all behind in facing this new and growing phase of the question. Whether their method of dealing with it may be right or wrong is a question for future solution. In a proposed ordinance which was under consider- ation early in August 1912, the Board of Health of Lansing, Michi- gan, sought to deal with the question in the following manner: "Milk or cream------shall be held to be unclean, impure, un- healthy, unwholesome or adulterated------When milk is drawn froin any cow that shall not within one year last past have been in- spected and tested to ascertain whether such animal is affected with tuberculosis or other contagious or infectious disease. The inevection and test named in this subdivision shall be held complied with if the owner or owners of such cow shall within one year from the going into effect of this ordinance file in the office of the board of health a certificate of a duly licensed veterinary surgeon, or any other person given authority by the livestock sanitary commission to make tuberculin tests, on blanks to be furnished vy the board of health, stating that such cow has been tested with tuberculin and examined and found free from tuberculosis or other contagious disease." The ordinance, of which this preceding paragraph was a part of a sub-section, wes not passed by the city council because of tlic dissatisfaction found with this specific section. Another ordinenc: was drawn up and proposed to take effect Jan. 1, 1913. ‘In this or- dinance the subject of tuberculosis was studiously avoided but it, too, was rejected by the city council. The council felt the need of adequate legislation on the subject of tuberculosis but felt tha they should proceed cautiously and guard against measures either to radical or so conservative as to effectively impede procress. Grand Rapids, Midhigan, attempted to deal with the subject of tuberculosis and drew up an ordinance containing a subsection rel- ative to tuberculosis which was identical with that quoted from the lansing ordinance, The city of Flint, Mihhigan, adopted a subsec- tion in their ordinance which read as follows: "It shall be the duty of the Board of Health to ascertain that the cows from which the applicant proposes to obtein milk for sale or distribution are free from tuberculosis and other in- fectious or contageous diseases. No cow shall be considered free from tuberculosis except after showing no response to the tuber- culin test, ae applied by a duly licensed veterinarian. The cows from which the applicant proposes to obtain milk for sale and dis- tribution shall be examined by a licensed veterinary before the City Clerk shall issue a license, and an examination of the cows in the herd from which milk is obtained for sale or distribution shall tbe made at least once a year thereafter, and each animal tagged in a manner to afford a permanent record of the examination, and no license shall be granted to any applicant until the cows from which he proposes to obtain milk for sale or distribution ere shown to be free from tuberculosis and other infectious and conta- gious diseases. No milk or cream shall be sold or offered for eale within the corporate limits of the City of Flint from any cow addec to a herd until such cow has been examined by a licensed veterin- erian, and upon such examination found free from tuberculosis and other infectious and contagious diseases and such an examination shall have taken place within six months from the time it is pro- posed to add such cow to the herd from which any milk dealer or vendor obtains milk sold or offered for sale within the corporate limits of the city of Flint. In all cases the expense of the vei- erinary shall be paid by the owner of the cow or cows.” The City of Detroit, Miedgan, rules that no milk shall be solé in Detroit "Which is produced from cows which are kept or stabled under unhealthful conditions, or which may be diseased; nor shall any milk be sold or delivered in said city, which is procured from any farm or dairy where any contagious or infectious or communicable disease may exist." The City of Battle Creek, Michigan, seeks to protect itself by a subsection in the very same words. Traverse City, Michigan, words its ordinance in part in the following way; "It shall be the duty of the Milk Inspector when ordered to do so by the council or board of health to inspect or cause to be inspected the dairy or dairy herd of any such person so applying for such a permit or who has obtained such a permit, or the dairy end dairy herds from which the applicant obtains milk or cream without any unnecessary delay and to examine each and every aninal producing milk for sale or consumption in said city, belonging to or controlled by any person having such permit, or the person from whom such dealer obtains milk or cream, for the purpose of ascertaining the presence or absence of tuberculosis or any other contagious or infectious disease and in making such inspections and examinations the inspector is hereby authorized to use what is known as a tuberculin test, a diagnostic agent for the detec- tion of tuberculosis in such animals. After such examination and inspection of the dairy and dairy herds as in hereinbefore provid- ed, he shall at the request of the owner of said herds tag each and every animal so examined, which tags shall state the result of the examination as regards the presence or absence of any conta- gious or infectious disease, and the said inspector shall file a report of the examination and inspection as herein provided with the City Clerk, which report shall state what disposition, if any, has been made by such dealer or the person from whom such dealer obtains milk or cream, of the cows which were found to be infect- ed with any contagious or infectious disease and whether or not any such diseased animals are used for the production of milk or cream for sale and consumption in said city.* Such has been the legislation produced in the State of Michi- gan concerning tuberculosis. It has not definitely been proven whether bovine and human tuberculosis is the same diseage; but ex- periments seem to indicate that they are. There will always be some ground for discussion on thisquestion as there are scientists of note who maintain that the two diseases are produced by differ- ent types of organisms, and they can give strong arguments in su ,- port of their contention. As the question cannot be argued here I will simply quote the most important findings from the Final Report of the Royal Commission on Tuberculosis. This report is quite gen- erally accepted as the "last word" on the subject and is the unpre- Judiced findings of several years of work by the best scientists of Great Britain. The report reads as follows in parts, not quoted ér- tire or necessarily consecutively: "The only difference in respect of cultural cheracteristics between the two types is that the human type exhibits a greater lux- uriance on all the different media we have employed in making con- parisons, and that although this difference is not md ntained with absolute constancy, we have not in our cultural experiments observe any case in which the mode of growth of the one tyne became so far modified as to be indistinguishable from the mode of growth usual ly exhibited by the other. But the point must be emphasized that the bacilli which we have referred to as the tovine type vary consiceri:- bly among themselves in resnect of luxuriance of growth, and that the gap that sevarates those of them that grow most abundantly fr... bacilli of the human type is not a wide one." “Chief anong the differences between tEcvine and human tuberc!< bacilli is, of course, difference of virulence towards certain ar:- malea,® “There would therefore remain only slight cultural differences on which to found the conclusion that the human and bovine types rc:- resent two distinct organisms. We prefer to recard these two tyves as varieties of the same bacillus, and the lesions which they pro- duce, wnether in man or other marmals, as manifestations of the s::.- disease,® “Whether one prefers to regard bovine tuberculosis and the carr: of tuberculosis in man which are caused by the human tyve cf bocitii as varieties of the same disease or as independent diseases, there: can be no question thet human tuberculosis is in part identical vit) bovine tuberculosis. Our researches have vroved that in a consider- able proportion of cases of the human disease the lesions contair., and are caused by, bacilli which are in every respect indistinguis’- able from the bacilli which are the cause of tuberculosis in cattle. In all such cases the disease, therefore, is the same disease ag t- vine tuberculosis." "Ey subdcutareous froculation the human type has teen found tr “5 missable in some degree to many different syvecies of animals, but for most of them transmission has been effected only by the erploy- ment of large doses. In strong contrast to this emall liability of certain of the lower animals to tuberculosis of the human type is the susceptibility of animals generally to infection by the bacillis of the bovine type (whatever the sourse, lower animals or man, of such bacillus)." “In cattle suffering from tuberculous disease acquired other” than by experimental means, we have in no single instance detected any but the bovine bacillus. We have conclusively shown that meny cases of fatal tuberculosis in the human subject have been produced by the bacillus known to cause the disease in cattle, and the pos- sibility of such infection cannot be denied." "Only rarely has a pulmonary lesion in adult men yielded the bovine bacillus. Our experience of abdominal tuberculosis in the human subject has been very different, especially as regards child- ren. Of young children dying of primary abdominal tuberculosis, the fatal lesions could in nearly one half the cases be referred tc the bovine bacillus, and to that type alone. In children, too, and often also in adolescents suffering from cervical gland tuberculosis a large proportion of the cases examined by us could be referred to the bovine tubercle bacillus." "The evidence which we have accumulated goes to demonstrate that a considerable amount of the tuberculosis of childhood is to b« ascribed to infection with bacilli of the bovine type transmitted tc children in meals consisting largely of the milk of the cow." "Though of the fifty five cases of adolescent and adult tuber- culosis which came under our scrutiny no more than five yielded bac- illi of the bovine type, we cannot say that this figure adequately represents the proportion of like cases obtaining among the tuber- culous population generally." From this report, therefore, we readily gain that tuberculosis in cows endangers the use of milk as a food, and particularly so as an infant food. Some sort of legislation is necessary consequently, for the protection of human life against this disease. Likewise some sort of protection is necessary for the farmer against the fun- atic or crank on the tuberculosis question who would have every sus- pected cow killed and burned regardless of the rights of the owner. When the farmer has been educated to the prevalence of tuberculcsis, its effect on human life, and how readily it can be checked and com- pletely eliminated, then he will cooperate in the anti-tuberculosis crusade, What has been accomplished by this great agitation of the milk question? What have been the results of these various ordinances throughout the state and country? Some are mere words; some are conservative in their requirements; others very radical; while a good many are ridiculously unjust. In the first place the public conscience has been awakened and the milk question has bemwme the health question. The time was when farmers thought a certain amour? of filth was a necessary constituent of milk and it can't be denied but that some farmers still entertain the same ideas. The time was, also, that the consumer thought he must take milk as it came to hin or else keep a cow in his backyard. Constant agitation has done a good deal toward removing those ideas but hasn't gone much beyond that. : A large business was now opened up, namely that of milk inspec- tion, Health authorities stated facts to show that inspection was necessary. The consumer was to receive the benefits of this insvec- tion at a very slight, if any, increase in the price of milk, eo he accepted the statements without further proofs. The burden of these reforms were to rest on the farmer and he, therefore, naturally called for proofs of the necessity of these reforms. The proofs have really never been furnished him. Lecturers have graced and cis graced Institute and Crange platforms, each and every one reiterat- ing the way of increasing the milk supply, the necessity of rigid inspection, but giving always a too superficial consideration of tre milk question to answer the "why" on any phase of the question. As a result the farmer knows the threadbare old story but has never seen it proved. What do the majority know about bacilli, cocci, streptococci, etc., until they have actually seen them? What does “clean up" mean when its actual significance in relation to contam- ination of milk is unknown? What does the farmer know about bacter- ial count when a drop of milk looks the same whether it possesses ten thousand or ten million bacteria? The farmer may have a good meny things to answer for some day but more responsibility will rest on the educated man who has seen and who knows but hasn't attempted to impart his information. In spite of the fact that the farmer has not been satisfied on the justice of the demands of the health department, he has taken the authorities at their word, though often with little grace, end has made improvements, Better stabling conditions exist in most barns; feeding time in relation to milking is now considered to rre- vent contamination of the milk by unnecessary dust; milk houses have been built; milk has been drawn under more sanitary conditions and has been cooled properly; more attention has been paid to the chemic composition of milk and this has led $6 more rigid selection and judicious breeding of dairy cows, coupled with scientific methods of feeding; and, lastly, much good has been accomplished in the in- sistence on bacterial count. Now that clean milk is becoming more readily available each year what is the attitude of the consumer? Some of them appreciate the advantages they can now enjoy and are maintaining an interest in the milk question and in the production and care which the milk re- ceives. Others are not appreciative and are just as much a dead weight on the milk question as is a careless, unprogressive farmer. It is not possible to discuss the mental attitude of consumer tow-rc: the producer, and vice versa, but it is, nevertheless, a significent fact that the consumer, who does understand and appreciate the farz- er's side of the question, and who performs his part in looking of- ter the care of the milk and of the bottles while in his possession, arouses a mutual interest which results beneficially for all concern For such customers the farmer is willing to produce a better quality of milk and deliver it in better condition. Those who are a stumbling block in the milk problem do not rec- ognize the total loss to the farmer each year for which they them- selves are responsible. When their milk is delivered in the early hours of the summer morning it is put in a shady spot. It is very often left, however, until it has long been exposed to the sunlight and heat; as a result it sours readily. Very often it may be left s0 exposed in an open dish and many organisms including pathogenic germs may enter, These things all count against the farmer for the true cause of the trouble is seldom set forth. Then in very many cases the consumers ere careless about the milk bottles; they are used for household purposes, are given to the children to play with, or are carelessly throw into the garbage barrel. ~- These are an injustice to the producer and he should receive protection from them through the ordinance. Such conditions are bound to create false relations between the producer and the con- sumer, ‘The consumer often thinks he is being cheated because it could be done and he couldn't detect it; the producer knows he is being treated unjustly because he knows his milk will withstand sour ing for a certain length of time under fair conditions, and because he can reckon his loss daily in missing milk bottles. It is reasonable to expect that laws which are partial to cer- tain classes of individuals would not tend to develop industries maintained by the individuals they oppress and such is the case in actual practise. The farmer naturally will always ask, previous to making any improvements, "Will it pay?" In every case reasonable improvements in the dairy business won't pay for the consumer will not pay a sufficient price for superior quality of milk. This is | not always the case, as it depends largely on geographical location and the nature of the availabk markets, but it is so often the cass as to effectively retard the developement of the dairy industry. The farmer must be assured that he shall not be obliged to sustain losses incurred by the carelessness of others or by their flagrant disregard of his rights. He must have the assurance of protection from the acts of unscrupulous and incompetent inspectors; and, fin- ally, to uplift the dairy business, the dairy man must be given rea- son to think that his work is a work of dignity and importance. Cfuc a condition can never be brought about untii the general public cnanges its opinion about the farmer; until ne is given a voice in the formation of milk ordinances, and until a milk ordinance means justice, protection, and encouragement, for him as well as for the consumer. There is an old word which is now rapidly coming into general use, and that word is "cooperation." We have seen in almost every Kind of industry what can be accomplished by cooperative efiaort, anc we know that the rarmers, ulthough slow to grasp the opportunity, are beginning to orgmize and cooperate. We hear of cooperation among the fruit growers, among the wheat growers, and among stock men, It is but a small step from cooperation among live stock men, many of whom are dairymen, to cooperation anong milk producers. S uch cooperation is necessary but what will oe the result? If the ordinances of a city are injurious to the interests of its local milk producers, instead of turning cooperative effort toward reduc- ing the cost of production, toward increasing their efficiency as agricultural business men, and toward improving the dairy business in general, the milkmen will be able to successfully boycott the cit and effectively cut off its milk supply. The argument won't nold that such a boycott is impossible because the city can bring in its milk supply from territory hundreds of miles beyond the vicinity of the cooperating farmers. If the physical characteristics of ilk do not put a limit on long shipments, economic considerations will, and in addition, any cooperative system can be directiy proportional in extent and effectiveness to the determination of the cooperators. Cooneration among farrers is comine very slowly but surel:, & the cirection of its effectiveness and mission will be @etermir«: largely by health commissions. A former cannot dictate to the mor- ers of an ordinance, if at all, cnly as a citizen within the city fimits, but he can make sugzestions for the framing of the ordinance. To accert sugzestions, if they are practical and worthy of consi¢-r- ation, is a step in the right direction. A health commisston shits @o even farther and should include among its number one or more rr- gressive fermers, or representatives chosen by the farmers effect=: by the Local ordinance. Such should give rice to a sririt of sati:- faction and then a cooperative spirit for improvement would nec¢s=- arily result. On studying the milk question, and in rarticular, considerin< milk orcinances from the producer's standpoint, I have concluded t! 1 the followirg factors should receive recognition in the ordinary nil? ordinance governing rilk and cream: 4. Condition of stables in which it is produced. 2 Condition of rlaces and recentacles in which stored. 3. lMetnod of cleaning the utensils used. 4. Condition of cows and of milkers at and durirg milking. 5 Temperature of milk while in milk house and until deliveres to the consumer. 6. Stage of lactation during which the milk is produced. 7- General health of herd and of each individual cow. Health of all persons, engeged in the production and subse- quent handling of milk, and of their respective families. 9. Nature and quality of feed fed to produd ng mimals. 10. Quality of milk. ll. Bacterial content with svecial eryphasis on tynes vresent. 12. Care of milk and cream by consumer. 13. Loss of bottles by consuners. 14. Qualifications of inspecta s. 15. Score ecards used by inssectors. There are otner minor factors which we do not think worthy sc: Q@iscussion here. The methods of keening the list of city milk de 7- ers, their licenses, etc., and otner related details, are matters c* routine work to be cered for by a City Clerk as he sees fit. Tr :-: are included in many ordinances though not in all cases, as the: have no bearing on the rilk question. In considering the kind of score card used by Inspectors 1 would recommend the one known as the Cornell University Dairy fcr: card. Its superiority over other score cards are: (1) Its questi. - will bring out the actual conditions of the dairy; (2) The ansus- mace by Lnepectors are coapiled’ in the form of score by an ex,e rt, and the wide variations of individual judgment are thereby eld:i:- ated. The questions are as follows: Telryman . Date PD. C. Locention MO, cows milking In herd Gis. wilk Cans or Bottl-+ Lilk sold to Ticense Wo. Report by At milking time? Four , 1. Health of the herd and its rrotection® Do all cows appear hnealtny? Are udders sound and free fron sions of @isense® =—_ ll. are covs tuvere.wlin testec? Date of last test By whom Is the stable well Duilt to protect fron the weather? Are cows brought in during bad storms? How many hours are the cows out dail; Width of stall Length Is the stall confortadle? Wow are the cows tie?" Vind and quality of redding VPrere are cows kept wren sick and at calving tie? Is the stable well located? Number and size of windows. Size of the statle, len,th width heighth How ventilated Kinds of feeds used Are they of good quality and rrarnortl ons? Source of water for cows ‘wethod of watering. Cleanliness of the cows and treir surroundings. Are the cows clenn®? Yow are they cleaned" Is the hair clipned about the udder? oh Is tne udder cleaned tefore miline® Tow? “here edad Cc Zs the stavle free from accuaulation of cobwebs, dirt, and dist Is the stable white-wasned°? Kinds and nurber of other animals, if any, in same room with «© Same, adjacent rooms What orenings betwien? Is the stavle yrotected from such sources of contamiantign cs rrivy, etc. LV. EFow often is the muiere pornoved Frou Is the barnyeri free from manure pile? And mad-holee® Is the ;ustire clean and free fron injurious slants? And mud-noles? Is the stable ;rovided with dust-tight ceiling? and partitione? Is feecing done before or after milking? Is the alr free from dust and odors? Construction and care of the utensils. Are all utensils such that they can be thoroughly cleaned? Béethod of washing utensils? How are the utensils sterilized? Is the water used for washing utensils pure? Yow do you Kru ® What is its source? Is the source protected against contamination? Eow are utensils cared for after cleaninz? Is a small-toc pail used for milking? If so, what etyle and size of opening? Health of employees and manner of milking. b-+y What evidence is there of absence of contazious disexse and exposure of fanily and employees to disease? Are the milkers clean personally? Do the milkers wear clean over-all suits? FEow often are the over-alls washed? Do the milkers wash their hands just before milking? Where® Do milkers have wet hancs when milking? Are wilkers careful not to dislodve hair and dirt from tne co: Widle milking? Is the forenilk discarded? V. Handling the milk. How ie the milk cooled? How soon after milking is the milk cooled? To what tenrerature? Is the milk nandled in a room detuched fron the stable? Wnat kind of floor? Is the milk room used exclusively for milk, and is it free from dirt and odors? At what temperature 1s the milk kept after cooling? How is milk cared for during transportation to market? This comprises the list of questions for the inspector to ar- swer. It 4s readily observed that personal opinions cannot affect tne answers to the questions at all and that the farmer has the ben- efit of having his dairy accurately and honestly scaei every time. The answers, when turned in at the office, are compiled in accordanveé with the following score: City of Detroit Score Card For Production of Sanitary I1ilk Date Dairy of P. Q. 1. Wealth of Fealth and comforts of the cows Perfect Score cuss ne herd and their isolation when sick or and its at calving time 4F orotec= tion » Cleanli- ness of the cows and tnueir surround- ings. Construce tion and care of utensils . Health of employees and manner of milking Jocation, lighting and ventilae- tion of the stable Food and water Total Cows Stables Barnyard and pasture Stable air (freedom from dust and odors) Total Construction of utensils and their cleaning and sterilizing Water supply for cleaning and lo- cation and protection of its source. Care of utensils after cleaning Use of snall top milking pail Total Health of employees Clean over-all milking suits and milking with clean, dry hands Quiet milking, attention to cleanli- ness of tne udder Total 39 20 100 30 20 20 30 100 40 30 29 100 Prompt and efficient cooling 35 the milk Werdling milk in a sanitary room and holding it at a low tenanerature 35 Protection during transport- ation to market. 30 Total 100 Total of all scores 500 If the total of all scores is And each di- The sanitary vision is conditions are 469 or above C0 or above Excellent 455 or above CQ or above Good 499 or above 60 or above Medium Below 400 Or any division is below 60 Poor The sanitary conditions are Scored by In useing the Cornell University Dairy Score Card a farmer ci. get a copy of both perts, learn what constitutes perfect under exch heading, and can then keen an accurate record of his own dairc; for the purposes of detecting possible errors on the part of the ir- Brector and use it as a guide for making imvrovements. The score card put out by the Dairy Division of the Bureau of Ani:+1 Industr: at Washington covers all points under consideration in a thorough inspection but it fails to furnish an inspector with any guidance whatsoever, and, whether he may be honest or not, the farmer may be under scored because of the wide variation in individual judgment allowed the inspector. The application of an ordinance to be the most effective must be so accomplished that it can gain the good will and cooperative efforts of the producers to the cause of sanitary milk production. In this phase of the problem lies the solution of offering something to the producer as a compensation for his extra labor and necessary improvements. Such a plan is already in working order in the cit; of Geneva, N. Y. It was instituted in 1907 and has completely changed the milk supply of that city. Although the New York State Agricultural Experiment Station is located in the same city, it was not connected directly or officially with the new plan. The new plan consisted in grading the milk and selling it on a basis of quality. Four grades were recognized and defined brief- ly as follows. (1) "Excellent"-- milk drawn in clean barns, from reasonably clean, tuberculin-tested cows, by clean milkers, into sanitary pails, and promptly cooled. (2) "Good"-« from dairies providing a reasonably clean, well cooled, but not, ordinarily, a tuberculin-tested product. (3) “"“Medium"-ein the main, dirty milk. (4) “Ppoor"-eessentially filthy milk. In addition to the system of grading was the admirable feature of publicity. This feature was, of course, introduced in successive steps but in ite final form it protected the health authorities from legal responsibility for financial losses resulting from the publication of facts, and it made accessibdle and intelligible to the largest possible number of people the results of the dairy in- spection. The best protection against legal action is to conduct th inspection in such an evidently impartial manner as to obtain tre support of all parties. The plan has been further explained as fol- lows; **The Inspector reported to the Dairy Products Committee. Thi L$) ] committee reported to the Board of Health, the report being accepted and entered in the minutes. This portion of the minutes was publis ed by the press as a part of the proceedings of the Board." "In the matter of publicity the three classes, the producers, the retailers, and the consumers, were considered separately. Lach producer was furnished with a carbon copy of his official score cara Each retailer was given the numerical score of the producer whoce product he was handling. The consumers were reached by the quarter- ly publication of the standing of each producer, with the name of the retailer who was distributing the milk. The official score cerd for each dairy was placed on file with the clerk of th Board, where it could be easily consulted by any one who was interested." This plan was introduced with a complete notification of the all the farmers one year before it was to go into effect. This gave them an opportunity to put their dairies in shape and raise their score before it should be published. The first published inspection gave the following summarized results; *Bulletin 337, N. y. Agricultural Experiment Station, page Cl. Grading To. Dairies Excellent Tone Good 7 Wediun 28 Poor 3 Total “ISI Three years later tie nublished report showed a cecidecly tirprove: cniange: Excellent 5 Good 34 Total 35 In making their annual contracts with the producers, a dairyin. ccmpaiy which had been formed for handling the milk supply, incluace a clause whereby any producer would receive three cents ner quart c- long as his dairy scored "mediuz," three and one half cents when it scored “cood," and four cents wien it scored "excellent." The offi- cial score of the dairy f@ each quarter was to be taken as tne bacis for making settlenents. The dairies whose nroduct was handled b-- this company mede a marked imvrovenent, while dairies, whose rrocuct was cared for by a company paying at a flat price, fell in their scores. The improvenent seemed to indicate that it was more profit- able to produce clean milk, and that the farmers made an effort t- produce such milk when method of payment depended unon tine cunlit: of product. Ultimately, however, the success or failure of this plen of improving a milk sunply must turn on the extent to which t: purchasing public transfers its custom in accord with the official standard of quality. | The first part of this paper tended to show that the milk or- dinances are not very much at fault except that in some instances they are extremely radical. The views which I have expressed as being from the standpoint of the producer, would undoubtedly be re- pudiated by most farmers. Then how can these views have any clain to expressing the farmer's viewpoint? Simply in this reepect; the vast majority of the farmer class are still asleep to the solution of the milk question, to a full understanding of its present day extensiveness and effectiveness, and to the wonderful opportunities in its future when a master hand shall solve the question and reor- ganize the system. Some milk producers are wide awake and are far better acquainted with the milk question than are the majority of health commissioners and inspectors, but they are comparatively fev. It is one phase of the milk question from their standpoint which I have tried to express. . A book entitled "The Milk Question" by M. J. Rosenau has just been issued by the press. The author is a member of the faculty of the Harvard Medical College and has formerly been employed in the United States Public Health and Marine Service. He is well quali- fied to discuss the milk question, at least from the scientific viewpoint, and has done so in a very capable manner in his recent publication. He has stated the facts both in pictures and print | and has shown justice to all concerned, the farmer, the milk peddler, the creamery man, the health officer, inspector, and consumer. But | the very last sentence of his work falls short of the standard main- teined in the rest of the book, and it falls stort in its finel a..- alysis and solution of the milk question. Fe says: "A milk sun; ]1;, therefore, tiat is botn supervised and pasteurized is the only ¢x‘- isfactory svlution of the problem." Professor Rosenau has fails: ; far short of wording the solution of the milk problem in this one : brief sentence. In a recent number of the American edition of the “World's Work' is a lengthy article entitled "The Bacteria of Bad Business." It deals with a quite thorough investigation of the milk supply of Ro- chester, N. Y., vy the author, Dr. John R. Williams. He writes thet "two inevitable conclusions arose clearly from the mass of detail gained in his investigation: (1) The fundamental cause of impure milk on the farm is the uneconomic method of rroduction. (2) The fundamental cause of impure milk in the city is the uneconomic method of distribution." He then concludes; "The solu- tion of the milk vroblen lies, therefore, in the better economic control of production and distribution." Dr. Williams has correct- ly solved one phase of the milk question but has beldly advanced it as the solution of the whole rproblen. The American Associations of MWedical 21k Commissions thought tney saw the solution of the milk cuestion in tne Ineffective, ur- organized, city milk ordinances. Accordingly they proceeded t» sslve the problem by enacting etrinsent lesislation to control tre producer in the production and distribution of milk. The colleg:: of agriculture have indirectly attenoted to sclve the question by teaching the farmers to lower the cost of production by economic, scientific methods of feeding and caring for their cows, and to in- crease their productivity by scientific principles of breeding. These three methods are good and all in the sight direction but they haven't solved the problen. Bacteriologists have discovered some very valuable things con- verning milk, its chemical constituents, its bacterial flora, and its physical properties. Upon these findings the health commissions have based their rules for sanitary improvements. They issued their demands to farmers in terms either too scl entific or too indefinite to be understood. As a result, improvements have not been made, the farmers have suffered fines, unjust criticism, and public abuse, for their excsable ignorance, and the consumers have come to consider themselves the would-be victims of a plot to sell them filthy, di- sease-laden, adulterated milk. Evidently bacteriologists have not succeeded in solving the question. The way looks dark and dangerous, therefore, for any new theory for the solution of this difficult question. However, each of the examples cited have been in the right direction and have contributed some progress toward the solution of the milk problem. Common sense would then prompt the combining of all these methods, together with any other factors which have proved to have an influence on the ques- tion. A new theory would then call the consumer to realize and share his part of the burden of the milk question by observing the rights of the producer and paying a just price for milk; would then empha- size economic control of production and distribution; would emphasize the teachings of the egricultural colleges; would urge health commis- sions to teach and show the farmers the “why" of legislation and sanitary principles; would wake the farmer to realize his position, take advantage of his opportunities, and bring his business up wie?- it belongs, namely in the lead of all industries. John Spargo has worded the problem and its solution aptly: "rarents cannot accomplish the task alone and unaided; physicians cannot do it; farmers and milk dealers cannot do it; it cannot be done by the governing bodies of our cities and states, or of the nation itself. But all these forces combined, earnestly and since:~- ly working together, can do it, and so bring about the tri- umph of life over death, of health over disease,® OT 3 HI 03083 0255