HYDROGEN n.
sulphuric) on metals, as zinc, iron, etc. It is very inflammable, and is an ingredient of coal gas and water gas. It is standard of chemical equivalents or combining weights, and also of valence, being the typical monad. Symbol H. Atomic weight 1.
IDENTIFY v.
To become the same; to coalesce in interest, purpose, use, effect, etc. [Obs. or R.] An enlightened self-interest, which, when well understood, they tell us will identify with an interest more enlarged and public. Burke.
INTERNAL-COMBUSTION; INTERNAL-COMBUSTION ENGINE a.
roleum), etc. There are three main classes: (1) gas engines proper, using fixed gases, as coal, blast-furnace, or producer gas; (2) engines using the vapor of a volatile fluid, as the typical gasoline (petrol) engine;