PROFITABLE TREE PLANTING. The establishment of the date palm in Arizona is one of the latest triumphs of the Department of Agriculture. Out of the oases of Arabian and African Saharas—out of antiquity itself—this Old-World "tree of life" has been set down in the irrigated oases of the Great American Desert, in the dawn of the twentieth century. It thrives and fruits in its new home, and gives every promise of continued prosperity. Behind the date palm is a list, indefinitely long, of fruit and ornamental trees introduced from other countries. Distant parts of America
have exchanged species through seed distribution and otherwise. The result is infinite variety in our planting—vast fortunes in orchard and garden products every year and in the enhanced values of land well planted. There is no doubt that where horticulture is concerned, tree planting has proved profitable, in spite of losses that experimentation has involved.