CRUDE DRUGS. 641 



For convenience in study, as well as identification, the drugs 

 of this class may also be grouped as follows : 



I. Solid. 



1. In powder form. 



White, inodorous, nearly tasteless Amylum 



2. In tears and masses. 



A. More or less spherical in form. 



a. In tears. 



Whitish or yellowish-white, mucilaginous Acacia 



Pale yellowish or greenish-yellow, resinous.. .Mastiche 



b. Excrescence. 



Somewhat spherical Galla 



B. In cylindrical pieces. 



Grayish orange-brown Cambogia 



Blackish-brown (see seeds) Guarana 



C. In cubes. 



Dull reddish-brown Gambir 



D. In quadrangular pieces, one side conve.v. 



Dull reddish- or grayish-brown, odor 

 opium-like Lactucarium 



E. In tliree-sided elongated pieces. 



Yellowish-white, odor of maple sugar Manna 



F. In bands. 



Whitish or pale-yellowish, mucilaginous Tragacantha 



G. In angular fragments. 



Whitish, inodorous and nearly tasteless Amylum 



Amber-colored, odor terebinthinate. .. .Colophony (Resina) 

 Small, dark, reddish-brown, brittle, astringent pieces. .Kino 

 Greenish-gray or brownish-black, odor 

 peculiar Scammonium 



H. In rounded masses. 



Grayish-brown, odor distinct, heavy Opium 



/. In irregular masses. 



Orange-brown to blackish-brown, odor distinct, 



taste bitter Aloe 



Dark reddish-brown, astringent Catechu 



Brownish-black, elastic Elastica 



Greenish-brown, odor balsamic Guaiacum 



Reddish-brown or yellowish-brown, odor 



terebinthinate Fix Burgundica 



41 



