AMARYLLIS is a beautiful and interesting genus of bulbs, the different species of which are now much cultivated, as they certainly deserve to be, some or other of them producing their splendid flowers all the year through: numerous mules or hybrid productions of this genus have been raised from seeds within these few years, and many of them are very grand ones, far surpassing the originals in beauty, and they also bloom much more freely, which makes them very desirable. In Mr. Colvill's collection at Chelsea, many hundreds of distinct ones have been raised; and we have seen 2 or 300 flowering altogether in the midst of winter, when scarcely another flower was to be seen; this was occasioned by turning a great number out of pots in autumn, and shaking all the mould from them; they were then laid upon a shelf made on purpose, and kept dry, till they began to show flowers, which they did some or other of these in succession all through the winter and spring. As soon as the flowers appear, they must be potted and placed in the hot house: by this means three times the quantity can be grown, than could otherwise be, as they can be grown all the summer in frames, where they will thrive much better than in the house; some of the sorts will not bear turning out, such as A. reticulata and striatifolia, or the mules raised from them; they will flower much better by remaining in pots all the year; whereas A. reginae, crocata, rutila, acuminata, fulgida, Johnsoni, psittacina, and the mules between those, are much better turned out. A. aulica, calyptrata, and solandraefolia, are also best to remain in pots; but they should be kept dry a considerable time to make them flower. Seeds of this genus, as well as most other bulbs, should be sown as soon as ripe; when the young plants are a few inches high they should be potted off, either singly in small pots, or several in a larger one; if a hot-bed frame be ready to receive them, all the better, as they will grow much faster in a frame, then in the house; as soon as the pots are filled with roots, shift them into larger ones, giving them three or four shifts in the course of the summer; by that means they will grow to a great size, and would sometimes flower when twelvemonths old. A. reticulata thrives best in light sandy loam; all the other species we find to succeed best in about one half light turfy loam, rather more than one third of white sand, and the rest turfy peat; the use of the turfy soil is to keep it from binding, or getting hard in the pots, which it will do if sifted fine, as is often done by inexperienced cultivators; by sifting this mould it takes away all the best part of it, and that which keeps it open and loose for the roots to run through. Another very material point in the cultivation of this genus, and most others, is to have the pots well drained with potsherds broken small, that the wet may pass off readily; the roots are also very fond of running amongst them. Many people when potting plants, first place a flat piece of sherd or tile over the hole at the bottom, and then put in the mould; the pot might as well have no hole at all, or they might as well cork it up at once, for the passage soon stops, and it is a chance if the plant does not get sodden and die; and I believe more plants are killed by that means than by any other; the right way is to first lay a piece of hollow potsherd over the hole, and another piece or two against it; after that put in a handful or two, or three, according to the size of the pot, of potsherds broken small, the smaller in reason the better, with a few rougher ones intermixed; that gives a free circulation, and no plant, a bulb in particular, can be expected to do well without it.