RAISING NEW VARIETIES.—A layer, a cutting, a bud, a graft, and a sucker, are detached portions of an individual plant; and the plant resulting from them is of precisely the same character with the parent. But, when the seed germinates, it is not the reproduction of the same individual, but it is the birth of a new one. The offspring will show a family likeness; but it is by no means probable, at least in the case of the rose, that its features will be precisely the same with those of its parent. Plant the seeds of a rose; as, for example, of the Hybrid Perpetual, La Reine, and of the resulting seedlings: all will probably show traces, more or less, of their origin; but the greater part will be far inferior to the parent. Some will be single; many will be half double; and, among a large number of seedlings, we shall be fortunate if we find two or three equal in beauty to La Reine herself. Nor is it at all likely that even these will be her precise counterparts. They may possibly be her equals; but they will not exactly resemble her: and thus we obtain a new and valuable acquisition to the list of roses. Now, if, instead of singly gathering and sowing the seeds of La Reine, we first impregnate its flowers with the pollen of a different variety, such as the Giant of Ba............