Certain varieties are much more subject to injury from cold than others. Among these are some of the most thrifty and free growing sorts. There appears to be an inherent quality of hardiness in others, that enables them to resist the most trying alternations of temperature. Why some should be thus hardy, and others tender, we do not know, but it is not their Northern or Southern origin; some having the former are most tender. Sad experience has taught us the fact, and since the dreadful winters of the past decade, in some parts of the West, the first question asked, respecting a new variety of fruit, is that regarding its hardiness. Pomological societies have endeavored to collate the names of the hardy and tender kinds, and have thus, by their united experience, been enabled to present lists of a few of the known hardy apples, for the guidance of planters. SOILS.--It will be proper, in this place, to say something about the soils best adapted to orcharding. The apple is a gross feeder, but a good-natured one, and, like a good citizen and a cosmopolite, it submits to surrounding circumstances. In our own country, it flourishes alike on the granite hills of New England, or the mountain ranges stretching thence to the southwest, in the limestone valleys amid these ridges, on the sandstones and shales that form the southeastern rim of the great valley of the West, upon the vast drift formations that overlie the rocks from the tide-waters of the St. Lawrence to the sources of the Missouri, upon the rich diluvial and alluvial deposits of our river bottoms, and our vast prairies. I have said that the apple flourishes _alike_ upon these various soils and under these so different circumstances; perhaps this expression should be somewhat modified; there are varieties that appear peculiarly adapted by their nature for all of these different situations; there are, perhaps, none that will thrive equally well in all. The orchardists of each section of the country must ascertain for themselves what varieties are best adapted to the peculiarities of their soil and climate; hence, no one region can furnish lists of varieties to be taken as a guide for the planting of others differently situated. Hence, too, the importance of local organizations for pomological study, and the great value of the labors of those who are engaged in the prosecution of these investigations in the American Pomological Society, which will, it is fondly hoped, ultimately give us corrected lists of fruits that are adapted to all the varying circumstances of soil and climate, in each of the great geological regions of our country. This has already been proposed by the excellent general chairman of Fruit Committees, as an important work for the National Society; and so soon as the subject receives a fair consideration, its merits will be appreciated, and a union of the best minds, and the best experience of the pomologists of each district, will be concentrated upon this labor.