FASTENING FOR FARM GATES. Our correspondent W. J. B., writing from the Michigan Agricultural College, tells how they fasten farm gates there: "They use a piece of 3/4 inch round iron bent into the form of a letter U. The bottom of the letter turns square corners and the arms are far enough apart and long enough to reach by the gate and hold it closed. This is secured by a couple of stout bolts in a notch cut into the post. Turn up the U against the post and the gate can open; drop it and all is more secure than when held by old wooden pins. It to simple, cheap, durable and handy. One of the students here invented a very nice gate fastening for which he received ten thousand dollars.