466 TAKING UP AND SETTING OUT TREES. W. J. Beal. In taking up a tree, whether large or small, do not twist it about so as to break or bend the roots abruptly. Get all the roots you can afford to, remembering that a tree will not grow without roots. When out of the ground keep the roots constantly covered with soil, moss, damp straw or something else. The roots are far more sensitive to dry air than are the parts above ground. No one need wonder that trees carted into town with short roots exposed to dry air, often fail to grow, or lead a precarious life for years. Study the structure and the physiology of a tree and treat it as one who always makes everything thrive which he cares for. To set a tree so as to insure its thrifty growth, place it but little deeper than it was while growing. Have the soil well pulverized and pack it closely about the tree. After all this trouble, do not court disappointment in the slow growth or in the death of a favorite tree, but dig or rake the ground every week or two, all summer for three to five years for a distance of four feet or more each way from the tree. If this is impracticable, place a mulch of something covering the space above mentioned. Don't plant fruit or nut bearing trees in the school yard! Don't plant too many strong growers, or too large a proportion of evergreens in the cemetery! Don't plant too near the house! Don't plant too closely to the roadside! Don't expose the roots of a tree to the sun if you hope to make it thrive! Don't plant a tree in a tough sod and then leave it entirely to itself! One of the greatest mistakes in tree planting is neglect.