This genus of plants comprises twenty-four species. Those usually cultivated in gardens are three, _Peppermint_, _Spearmint_, and _Pennyroyal mint_. All mints are propagated by the same methods. Parting the roots, offset young plants, and cuttings from the stalks. Spearmint and peppermint like a moist and even wet soil. Pennyroyal does better in a rich loam. Plants come into use the same season they are set. Set the plants eight inches apart, and on beds four feet wide, leaving a path two feet between them. In field culture, for the oils and essences, place them two feet apart, for the convenience of going between the rows with a horse. Thus cultivation becomes easy. They should be cut in full blossom, and dried in small bunches in the shade, but better by artificial heat, like hops. They should be cut when dry. For domestic uses, dry quickly, and pulverize, and put away in tight glass bottles. They will retain all their strength, keep free from dust, and always be ready for use. The same is true of all the herbs for domestic use. As a field crop, mints are profitable. MULBERRY. There are three varieties cultivated in this country. We place them in the order of their qualities:-- 1. _The Johnson._--A new variety, thus described by Kirtland: "Fruit very large; oblong cylindric; blackish, subacid, and of mild and agreeable flavor. Growth of wood strong." 2. _The Black Mulberry._--An Asiatic variety, rather tender for the North, though it succeeds tolerably well in some parts of New England. Fruit large and delicious; tree low and spreading. Easily cultivated on almost any soil. Propagated by seeds, layers, cuttings, or roots. 3. _The Red Mulberry._--A native of this country. Fruit small and pleasant, but inferior to the two preceding. MULCHING. This is placing around plants or trees, coarse manure or litter of any kind, to keep down weeds, and prevent too rapid evaporation of moisture. All straw, corn stalks, old weeds or stubble, forest leaves, seaweeds, old wood, sawdust, old tanbark, chips, &c., are good for mulching. Any tree taken up and planted with reasonable care, and well mulched and watered, will live. One of fifty need not die. Cover the loose earth deep enough to prevent the springing of weeds. Put a little earth on the outer edge of the manure, leaving it dishing about the tree. Fill that occasionally with water, and you will get a good growth, even in a dry season.