CANADA TURPENTINE 481 



Habitat — Southern Europe, mountainous regions. 



Properties. — Hard, yet taking gradually tlie form of the 

 vessel in which it is kept ; brittle, with a shining, conchoidal 

 fracture ; opaque or translucent ; reddish-brown or yellowish- 

 brown ; odor agreeably terebinthinate ; taste aromatic, 

 sweetish, not bitter. It is almost entirely soluble in glacial 

 acetic acid, or in boiliug alcohol, and partly soluble in cold 

 alcohol. 



Constittients. — 1, resin ; 2, a volatile oil (CioHig). 



Dose,—R. & C, 5i.-iii. (30.-90.); Sh. &Sw., 3i.-ii. (4.-8.); 

 D., gr.xx.-xl. (1.3-2.6). 



PREPARATION. 



Emplastrum Picis Burgundicoe. Burgundy Pitch Plaster. 



(if. S. P.) 

 Burgundy pitch, 800 ; olive oil, 50 ; yellow wax, 150. 



Terebinthina Canadensis. Canada Turpentine. 

 (U. S. <fe B. P.) 



A liquid oleoresin obtained from Abies balsamea (Linne), 

 Miller (nat. ord. Coniferse). 



Synonym. — Canada balsam, balsam of fir, balsamum 

 Canadense, E. ; baume de Canada, Fr. ; Canadischer terpen- 

 tin, G. 



Habitat. — Canada and N. United States ; west to Minne- 

 sota, south on mountains to Virginia. 



Properties. — A yellowish or faintly greenish, transparent, 

 Tiscid liquid, of an agreeable terebinthinate odor, and a 

 bitterish, slightly acrid taste. When exposed to the air it 

 gradually dries, forming a transparent mass. It is completely 

 soluble in alcohol, chloroform or benzol. 



Constituents. — 1, volatile oil, 20-30 per cent.; 2, a resin; 

 3, a soluble bitter principle. 



Dose.—R. & C, I i.-iii. (30.-90.); Sh. & Sw., 3 i.-ii (4.-8.); 

 D., gr.xx.-xl. (1.3-2.6). 



