HORSE POWER

This term, as applied to steam-engines, refers to the weight which they are capable of raising to a given height in a given time. Watt estimated a single horse power at 32,000 pounds avoirdupois lifted to the heigh! of one foot per minute; this is, however, nearly double the work of a single horse as usually applied to raising weights. HORSE RADISH, the root of the Cochlcaria armvracia, which when scraped is often eaten as a condiment and an ingredient in sauces, has a place in the Materia. Mr.dica as a stimulant, and a compound spirit and compound infusion are directed in the Pharmacopoeia: the latter very soon becomes putrid, and neither are useful. [s. 582]