LEGUMINE, is the name of a vegeto-alkali supposed to exist in leguminous plants.
LEMONS. See [Citric Acid], and [Oils, Essential].
LEVIGATION, is the mechanical process whereby hard substances are reduced to a very fine powder.
LEUCITE, is a hard Vesuvian mineral, consisting of silica, 54; alumina, 23; potash, 23.
LEUCINE, is a white crystalline substance produced by acting upon flesh with sulphuric acid.
LEWIS, is the name of one kind of shears used in cropping woollen cloth.
LIAS, is a fine-grained argillaceous limestone, whose geological position is under the oolite; it is the proper lithographic stone.
LIBAVIUS, Liquor of, is the bichloride of tin, prepared by dissolving that metal with the aid of heat, in [aqua regia], or by passing chlorine gas through a solution of muriate of tin till no more gas be absorbed, evaporating the solution, and setting it aside to crystallize. The anhydrous bichloride is best prepared by mixing four parts of corrosive sublimate with one part of tin, previously amalgamated with just so much mercury as to render it pulverizable; and by distilling this mixture with a gentle heat. A colourless fluid, the dry bichloride of tin, or the proper fuming liquor of Libavius, comes over. When it is mixed with one-third of its weight of water it becomes solid. The first bichloride of tin is used in calico-printing.
LICHEN. See [Archil].
LIGNEOUS MATTER, is vegetable fibre. See [Fibrous Matter].