676 VEGETABLE DRUGS 



bladder or rectum (piles) wheu 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 (as 

 Pond's) 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.G. ; 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. 



Constitmnts.—l, olein, C3H5 (C,8H3302)3, 72 per cent., a 

 fluid oil, a combination of oleic acid (HC18H33O2) and glyceryl ; 

 2, palmitin, C3H5 (C,6H3i02)3, about 28 per cent., a combina- 

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

 cholesterin (CjeH^^O). 



i>os6.— Laxative— H.&C.,Oi.-ii. (500.-1000.); D., 5 ii.-iv. 

 (60.-120.). 



Oleum Gossypii 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. 



