For this there is a certain preventive. It consists in shortening in, by cutting off in the month of September, from a third to a half of the current season's growth. If the top be large, cut off one half the length of the new wood. If it be less vigorous and rank, and you fear you will not have room for a fair crop of peaches, cut off but one third. This heading-in is sometimes recommended to be done in the spring. For forming a head in a young tree the spring is better. But to mature the wood, and increase the quantity, and improve the quality of the fruit, September is much the best. Such shortening in early in September, directs the sap to maturing the wood, already formed and developing fruit-buds, instead of promoting the growth of an undue quantity of young and tender wood, to be destroyed by the winter, or to hinder the growth of the fruit of the next season. This heading-in process, with these young shoots, is most easily performed with pruning shears, with wooden handles, of a length suited to the height of the tree. [Illustration: Neglected Peach-Tree.] [Illustration: Properly-trimmed Peach-Tree.] But a work to precede this annual shortening-in, is the original formation of a head to a peach-tree. Take a tree a year old from the bud, and cut it down to within two and a half feet from the ground. Below that numerous strong shoots will come out. Select three vigorous ones and let them grow as they please, carefully pinching off all the rest. In the fall you will have a tree of three good strong branches. In the next spring cut off these three branches, one half. Below these cuts, branches will start freely. Select one vigorous shoot to continue the limb, and another to form a new branch. Check the growth of the shoots below, by cutting off their ends, but do not rub them off, as they will form fruit branches. At the close of the season you will have a tree with six main branches, and some small ones for fruit, on the older wood. Repeat this process the third year, and you have a tree with twelve main branches, and plenty smaller ones for fruit. All these small branches on the old wood, should be shortened in half their length, to cause the leaf-buds near their base to start, so as to produce large numbers of young shoots. Continue this as long as you please, and make just as large a head and just such a form as you may wish, being careful only to control the shape of the top so as to let the sun and air freely into every part.