_Propagation._--This is done mainly by seeds, budding and grafting. The best method is by common cleft-grafting on all stocks large enough, and by whip or tongue grafting on all others. (See under article, Grafting.) Grafting into the sycamore is recommended by some. The scions are said to grow profusely, and to bear early and abundantly; but they are apt to be killed by cold winters. We do not recommend it. Almost everything does best budded or grafted into vigorous stocks of its own nature. Root-grafting, as it is termed,--that is, cutting up roots into pieces three or four inches long, and putting a scion into each--has been a matter of much discussion and diversity of opinion. It is certainly a means of most rapidly multiplying a given variety, and is therefore profitable to the nurseryman. For ourselves, we should prefer trees grafted just above, or at the ground, using the whole stock for one tree. We do not, however, undertake to settle this controverted point. Our minds are fixed against it. Others must do as they please. Propagation by seed is thought to be entirely uncertain, because, as is supposed, the seeds will not reproduce their own varieties. We consider this far from being an established fact. When grafts are put into large trees, high up from the ground, their fruit may be somewhat modified by the stock. There is also a slight tendency in the seeds of all grafts to return to the varieties from which they descended. But we believe the general rule to be, that the seeds of grafts, put in at the ground and standing alone, will generally produce the same varieties of fruit. The most prominent obstacle in the way of this reproduction is the presence of other varieties, which mix in the blossom. The planting of seeds from any mixed orchard can never settle this question, because they are never pure. Propagation by seeds, then, is an inconvenient method, only to be resorted to for purposes of acclimation. But it is so seldom we have a good bearing apple-tree so far removed from others as not to be affected by the blossoms, that we generally get from seeds a modification of varieties. Raising suitable stocks for grafting is done by planting seeds in drills thirty inches apart, and keeping clear of weeds until they are large enough to graft. The soil should be made very rich, to save time in their growth. Land where root-crops grew the previous year is the best. If kept clear of weeds, on rich, deep soil, from one to two thirds of them will be large enough for whip-grafting after the first year's growth. The pomice from the cider-mill is often planted. It is better to separate the seeds, and plant them with a seed-drill. They will then be in straight, narrow rows, allowing the cultivator and hoe to pass close by them, and thus save two thirds of the cost of cultivation. The question of keeping seeds dry or moist until planting is one of some importance. Most seeds are better for being kept slightly moist until planted; but with the