6 VETEEINAET MATERIA MBDICA. 



Oleata, oleates, are liquid solutions of metallic 

 salts and alkaloids in oleic acid, and are for external 

 use only. 



Oleoeesin^, oleoresins, are liquid preparations 

 consisting principally of natural oils and resins ex- 

 tracted from vegetable drugs by percolation with 

 stronger ether. 



Pilule, pills, are spherical or globular masses 

 composed of medicinal agents, and are intended to be 

 given at one dose. The pill mass consists of the ac- 

 tive ingredients and the excipient, which is the sub- 

 stance employed to give the mass its adhesive and 

 plastic qualities. 



PxjLVERES, powders, consist of dry substances in a 

 state of minute subdivision obtained by pulveriza- 

 tion. They are sometimes composed of several in- 

 gredients which are finely powdered and thoroughly 

 mixed. 



EesiNjE, resins, are solid preparations obtained by 

 precipitating the resinous principles of plants from 

 their alcoholic solutions by the agency of water. 



Spiritus, spirits, are alcoholic solutions of volatile 

 substances, which may be either solids, liquids, or 

 gases. They may be prepared by simple solution, by 

 solution with maceration, by gaseous solution, by 

 chemical reaction, or by distillation. 



SUPPOSITORIA, suppositories, are solid bodies con- 

 sisting of medicinal substances incorporated with 

 cacao butter, and intended for introduction into the 

 rectum, vagina, or urethra. 



Syrupi, syrups, are concentrated solutions of su- 



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