The following compound of soils are adapted to the nature of the Plants contained in this Work.

The figures attached to the first species of each Genus refer to the Table of Soils, where the compost is in parts; and where any figures occur in the same Genus, the species following are of the same nature.

REMARKS ON THE NATURE OF SOILS USED IN THE ABOVE TABLE.

Savanna soil—is of a dark colour, with a large portion of white sand incorporated with it, and is found frequently in New Jersey. A mixture of two-thirds black earth from the woods, and one-third of pure white sand, will be similar to it, and may be used as a substitute, but is not exactly of the same nature.

Loam—is of a light brown colour, and is that from old pastures or commons, which should lie one year, and be frequently turned before using. It ought not to be from a clay bottom.

Leaf mould—is that which is to be found on the surface of the ground in woods, and is the decomposed leaves. It may be termed nearly of first rate importance in vegetation.

Sand—is a substance that is generally known, and that which is found on the surface is decidedly the best. If it is from a pit, it must be spread out, and frequently turned, that it may assimilate with the atmosphere before using;—four months will be sufficient.

Manure—before using, must be decomposed to very fine particles. It will require two years, during which time it must be often turned, and the longer it lays it will be the finer and more congenial.