Colic, Accident′al. Produced by improper food, and poisons. The treatment may be similar to that recommended for bilious or flatulent colic.

Colic, Bil′ious. In this variety the pain is intermittent and transient, accompanied by constipation, nausea, and vomiting. The fæces, if any, are bilious, dark-coloured, and offensive. The common remedies are, a full dose of blue pill, calomel, colocynth, or aloes, followed by a sufficient quantity of Epsom salts or Glauber’s salts. Warm fomentations are also serviceable.

Colic, Flat′ulent. Marked by constipation, and the irregular distension of the bowels by gas, accompanied by a rumbling noise, &c. It is commonly produced by the use of indigestible vegetables and slops. The remedies are, a full dose of tincture of rhubarb combined with a few drops of essence of peppermint. If this does not afford relief, an Abernethy pill may be taken, washed down with a glass of any cordial water, as peppermint, cinnamon, or caraway. When the pain is extreme, warm fomentations to the belly, or a carminative clyster, will generally give relief. The Editor has found castor oil and Collis Browne’s chlorodyne of great benefit in this complaint.

Colic, Paint′er’s. Syn. Plumb′er’s colic, Devonshire c., Lead c.; Col′ica picto′num, L. The dry belly-ache. It is marked by obstinate costiveness, acrid bilious vomitings, violent pains about the region of the navel, convulsive spasms in the intestines, and a tendency to paralysis in the extremities. It is most prevalent in the cider counties, and amongst persons exposed to the fumes of lead. The remedies are the same as for the spasmodic variety. Should these fail, after the bowels have been thoroughly evacuated, small doses of camphor and opium may be administered, and sulphuric beer or sweetened water very slightly acidulated with sulphuric acid, had recourse to as a beverage. Mr Benson, the managing director of the British White-lead Works at Birmingham, says:—“Although during several weeks after the addition of the sulphuric acid to the treacle beer, drank at the works, little advantage seemed to be derived,

yet the cases of lead colic became gradually less frequent, and since October of that year, or during a period of fifteen months, not a single case of lead colic has occurred amongst the people.” (‘Lancet.’) See Beer, Sulphuric Acid, and Sulphuric Acid.

Colic, Spasmod′ic. Marked by a fluctuating pain about the navel, which goes away and returns by starts, often leaving the patient for some time. The belly is usually soft, and the intestines may often be felt in lumps, which move about under the hand, or are wholly absent for a time. It is unaccompanied by flatulency. The remedies are warm fomentations, warm clysters, and carminatives, accompanied by small doses of camphor and opium.

Colic, Stercora′ceous. Marked by severe griping pains and constipation of the bowels. The remedies are powerful cathartics, as full doses of calomel, aloes, colocynth, jalap, &c., followed by purgative salts, as sulphate of magnesia, or sulphate of soda.

Colic in Horses. First give the horse a sharp trot, and apply friction over the belly, and follow this up with a drench of warm gruel to which has been added a glass or two of whisky or gin. Should these fail to give relief, let 4 dr. of aloes be rubbed down in a pint of hot water, and when the mixture becomes cool enough, add from thirty to sixty drops of strong solution of ammonia. Where the spasms and distress continue severe, and with little intermission, the physic may be followed in an hour with 2 dr. of tincture of aconite, given with an ounce of spirit of chloroform, in a little water, and repeated every hour; soap and water clysters should be administered every half hour, and friction and hot fomentations applied to the abdomen.

COLLO′DION. Syn. Collo′dium, L., B. P. A viscid fluid formed by dissolving pyroxylin (Schönbein’s gun-cotton) in a mixture of ether and alcohol. In surgery it is used in its natural state, and combined with certain elastic and medicinal substances. In photography it is used in combination with agents that render it sensitive to the action of light.

Collodion. Syn. Plain collodion. The following are the best methods of preparing plain collodion for surgical purposes:—