AND PHARMACOP(EIA. 461 



No. 3. Super- acetate of lead 4 scrs. 



Water I pint. 



Distilled vinegar 2 ozs. — Mix. 



After shaking the ingredients together, so as thoroughly to 

 Incorporate them, filter them through blotting paper. These 

 lotions are astringent, and are useful in relaxations of the vessels 

 of the conjunctiva. 



Nitrate of silver 1 to 2 grs. 



Distilled water 1 oz. 



This is a very effectual stimulant, after the active inflamma- 

 tion has ceased. 



Tincture of disjltalis and extract of belladonna have both 

 been applied to the eye with advantage. 



By some, colly ria are divided into dry and liquid; the dry are 

 powdered salt or sugar, blown into the eye by means of a quill; 

 crude sal ammoniac (muriate of ammonia), white vitriol (sulphate 

 of zinc), powdered alum, &c. 



COLOMBO. — Colombo Radix. A good stomachic bitter, 

 much used in human medicine; and though rarely employed iu 

 veterinary practice, seems to be worth a trial in cases of indiges- 

 tion and flatulency. See Columba Boot. 



The dose is three or four drachms or more: it would, perhaps, 

 be more eflfectual if joined with ginger or cassia. See Tonics 

 and Stomachics. 



COPAIBA. See Balsam of Copaiba. 



COPPEB. — Cuprum. This metal is a component part of 

 blue vitriol {sulphate of copper) and verdigris, two valuable pre- 

 parations. See Blue Vitkiol and Verdigris. 



COPPEB AS. — Sulphas Ferri. A term formerly employed, 

 and still used in the arts, for sulphate of iron, or green vitriol, 

 which has also, when purified, been named salt of steel {sal 

 7nartis), and vitriolated iron. It is a very useful tonic in doses 

 of from two to six drachms, and is thus given Avith vegetable 

 tonics to promote condition. Sulphate of zinc has also been 

 named white copperas, but more commonly white vitriol. 



COBDIALS. There are no medicines more frequently 

 employed than cordials and diuretics, and none, perhaps, speak- 

 ing generally, that do more harm, thougli productive of tem- 

 porary good Avhen judiciously employed. But with respect to 

 cordials, it is necessary to inquire what are the circumstances 

 which render them necessary, and then we shall soon learn that 

 it is immoderate work, and bad management in regard to feed- 

 ing; by the latter is meant the bad quality, as well as the im- 

 moderate quantity, of the hay that is often given. This is the 

 most prevailing error in feeding. Next to it is that of not 

 allowing a sufficient quantity of good oats, or not properly pro- 



