Chemistry: The science which treats of the elementary constituents of bodies.

Chinese belle, deformities of: In China, it is the fashion to compress the feet of female infants, to prevent their growth; in consequence of which, the feet of all the females of China are distorted, and so small that the individuals can not walk with ease.

Chloride: A compound of chlorine and some other substance.

Chlorine is a simple substance, formerly called oxymuriatic acid. In its pure state, it is a gas of green color, (hence its name, from a Greek word signifying green.) Like oxygen, it supports the combustion of some inflammable substances. Chloride of lime in a compound of chlorine and lime.

Cholera infantum: A bowel-complaint to which infants are subject.

Chyle: A white juice formed from the chyme, and consisting of the finer and more nutritious parts of the food. It is afterward converted into blood.

Chyme: The result of the first process which food undergoes in the stomach previously to its being converted into chyle.

Cicuta: The common American hemlock, an annual plant of four or five feet in height, and found commonly along walls and fences and about old ruins and buildings. It is a virulent poison as well as one of the most important and valuable medicinal vegetables. It is a very different plant from the hemlock-tree or Pinus Canadiensis.

Clarke, (Sir Charles Mansfield,) Dr.: A distinguished English physician and surgeon, who was born, in London, May 28th, 1783. Ha was appointed physician to Queen Adelaide, wife of King William IV., in 1830, and in 1831 he was created a baronet. He was the author of several valuable medical works.

Cobalt: A brittle metal, of a reddish-gray color and weak metallic lustre, used in coloring glass. It is not easily melted nor oxidized in the air.