COAL n.
, and consisting, like charcoal, mainly of carbon, but more compact, and often affording, when heated, a large amount of volatile matter.
COBALTOUS a.
ts lower valence. Cobaltous chloride, a crystalline compound, CoCl2, of a pale rose color when hydrous, blue when dehydrated. Its solution is used for a sympathetic ink, the writing being nearly colorless when dried in the air, owing to absorbed moisture, and becoming bright blue when warmed.
COERCION n.
The application to another of either physical or moral force. When the force is physical, and cannot be resisted, then the act produced by it is a nullity, so far as concerns the party coerced. When the force is moral, then the act, though voidable, is imputable to the party doing it, unless he be so paralyzed by terro…