Spirits of Chloroform, or Chloric Ether, consisting of one part of chloroform in twenty parts of alcohol, is a convenient form in which to administer the drug. It is useful in sea-sickness, cramps and colic, and should be given in doses of twenty drops added to a teaspoonful of water every quarter of an hour, until six such doses have been given.

* Cocaine.—A one per cent. solution may be used to diminish pain in the eye caused by injury or a piece of grit lodging under the lids. Two drops should be applied to the eyeball, and in about two minutes the application may be repeated; in another minute the sensibility of the part will be diminished, and a careful examination may be made for dust or other foreign bodies, which should of course be cautiously removed.

Creosote.—Dose, one to two drops; is best given in a capsule. In many cases of indigestion it gives great relief if administered immediately after food. Creosote applied to a hollow tooth, upon a piece of cotton-wool, will usually relieve the pain.

Cresol.—This is a valuable disinfectant which is found on the market under several names.

* Croton Oil.—Dose, half to one or two drops, mixed with bread crumb or in a pill.

Is a powerful purgative not usually given to Europeans. Native carriers like it. Useful in the case of unconscious patients, given in butter.

Copaiba, Balsam of.—Dose, five to twenty drops three times a day. Is best taken in capsules. It increases the expectoration, and is therefore useful in bronchitis; is a stimulating disinfectant to the urine, bladder and pipe, and is used in gonorrhœa and inflammation of the bladder. It may produce an irritating rash on the skin if taken in too large quantities.

Emetics.—The following are the usual emetics:—

Common salt, two tablespoonfulsin half a pint of water.
Mustard, one tablespoonful” ”
Ipecacuanha, thirty grains” ”
Zinc sulphate, thirty grains” ”