602 VEGETABLE DBUGS 



bladder or rectum (piles) when injected (1-8) into these 

 parts. It lessens soreness and swelling of blind piles — with 

 an equal part of glycerin and a little starch — and the same 

 preparation is beneficial in eczema, pruritus, and cutaneous 

 irritations. The clear, colorless proprietary extracts — now 

 the aqua (U.S P.) takes their place — are often more efficient 

 externally and internally (in the same doses) than the 

 official extract. 



SECTION XIII.— VEGETABLE DEMULCENTS. 



Oleum Oliv^. Olive Oil. (U. S. & B. P.) 



Synonym. — Sweet oil, E. ; oleum olivarum, P.O. ; huile 

 d'olive, Fr.; oilvenol, G. 



A fixed oil expressed from the ripe fruit of Olea Euro- 

 pcea Linne (nat. ord. Oleacese). 



Habitat. — Southern Europe and Asia. 



Properties. — A pale yellow, or light greenish-yellow, 

 oily liquid, having a slight peculiar odor, and a nutty olea- 

 ginous taste, with a faintly acrid after-taste. Spec. gr. 0.915- 

 0.918. Very sparingly soluble in alcohol, but readily soluble 

 in ether, chloroform, or carbon disulphide. Very frequently 

 adulterated with cotton seed, or other seed oils, which prob- 

 ably are of equal medicinal value, however. 



Constituents.— I, olein, C3H5 {Q^^,fi^„ 72 per cent., a 

 fluid oil, a combination of oleic acid (HCigHjjO^) and glyceryl ; 

 2, palmitin, C3H5 (CieHjiOJj, about 28 per cent., a combina- 

 tion of palmitic acid (HCisHjOj) and glyceryl ; and (3) 

 cholesterin {G^^JJ). 



i)ose.— Laxative— H. & C, Oi.-ii. (500.-1000.); D., § ii.-iv. 

 (60.-120.). 



Oleum GossYPn Seminis. Cotton Seed Oil. (U. S. P.) 



A fixed oil expressed from the seed of Gossypium her- 

 baceum Linne and of other species of Gossypium (nat. ord. 

 Malvaceae), and subsequently purified. 



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