A Treatise on Domestic Economy; For the Use of Young Ladies at Home and at School

hard, shining, transparent resin, of a light citron color, brought, originally, from Spanish America, and now almost wholly from the East Indies. It is principally employed in the preparation of _copal varnish_. _Copper, sulphate of_, see _Sulphate of copper_. _Copperas_, (sulphate of iron, or green vitriol,) a bright green mineral substance, formed by the decomposition of a peculiar ore of iron, called pyrites, which is a sulphuret of iron. It is first in the form of a greenish-white powder, or crust, which is dissolved in water, and beautiful green crystals of copperas are obtained by evaporation. It is principally used in dyeing, and in making black ink. Its solution, mixed with a decoction of oak bark, produces a black color. _Coronary_, relating to a crown or garland. In anatomy, it is applied to arteries which encompass the heart, in the manner, as it is fancied, of a garland. _Corrosive sublimate_, a poisonous substance, composed of chlorine and quicksilver. _Cosmetics_, preparations which some people foolishly think will preserve and beautify the skin. _Cream of tartar_, see _Tartar_. _Crimping-iron_, an instrument for crimping or curling ruffles, &c. _Curculio_, a weevil or worm, which affects the fruit of the plum tree, and sometimes that of the apple tree, causing the unripe fruit to fall to the ground. _Curvature of the spine_, see pages 80, 81. _Cuvier, Baron_, the most eminent naturalist of the present age, was born, A. D. 1769, and died, A. D. 1832. He was Professor of Natural History in the College of France, and held various important posts under the French Government, at different times. His works on Natural History are of the greatest value. _Cynosure_, the star near the North Pole, by which sailors steer. It is used, in a figurative sense, as synonymous with _pole-star_, or _guide_. _De Tocqueville_, see _Tocqueville_. _Diamond cement_, a cement sold in the shops, and used for mending broken glass, and similar articles. _Drab_, a thick woollen cloth, of a light brown or dun color. The name is sometimes used for the color itself. _Dredging-box_, a box with holes in the top, used