DISTANCE.--The distance between the trees is a matter that should be carefully determined. Their habit should be considered, and their size, when fully developed, must be studied. Some varieties will be more crowded at forty feet apart, than others at fourteen. If possible, the larger and widely spreading sorts should be assorted and planted by themselves, and the more compact, upright and smaller ones should be grouped together. It is difficult to do this, however, for want of the necessary data; we can only make an approximation to the desired result. Thus, the Yellow Bellflower, Summer Queen, Fall Pippin, King of Tompkins County, Talman's Sweet, Golden Sweet, Pennock, Northern Spy, and several others, are of the largest kind of trees, and may be allowed as much as forty feet of space between them, while the upright character and moderate growth of the Lady, Bullock's Pippin, Red June, Benoni, Early Joe, American Summer Pearmain, Summer Rose, Red Astrachan, and others, of similar habit, would enable us to crowd them into half as much space without serious injury--and there are trees of intermediate size and vigor, such as the Winesap, Rambo, Greening, Russet, Early Harvest, Fall Wine, Autumn Strawberry, Hubbardston, Jonathan, and a host of others that, at the same ratio, should have thirty feet spaces between them. There is also a great diversity of opinion among orchardists as to the proper allowance of space for each tree, and many western planters are advocates of close planting of the apple, which I have seen placed as near as sixteen feet, occupying the whole space in a very few years, and bearing luxuriantly. The advocates of such crowding urge, that they protect one another, and that alternate trees can easily be removed whenever they become too much crowded. In other places, the old rule, of allowing two rods (33 feet), or even forty feet, between the trees, is still followed and considered the best.