EXUDATIONS, JUICES, ETC. 
253 
ammonia water, indicating the absence of turpentine 
and fixed oils. 
Constituents. — Storax consists chiefly of a resin- 
alcohol storesinol (storesin), of which there are several 
modifications, existing free and in combination with 
cinnamic acid; a fragrant volatile oil, 05 to 1 per 
cent., containing styrol (styrene, phenyl-ethylene) a 
hydrocarbon having the pungent taste of the drug ; 
cinnamic acid 10 to 20 per cent.; benzoic acid; 
vanillin ; styracin (cinnamyl cinnamate), a colorless, 
odorless, tasteless, crystalline principle, and also a 
number of other principles. 
Allied Plants. — Liquidambar Styraciflua, a tree in- 
digenous to the Eastern and Southern United States, 
yields the American storax, which occurs as a yellow- 
ish-brown semi-liquid and contains principles which 
appear to be somewhat similar to those of the Levant 
storax. 
TE BEBINTHINA CANADENSIS 
(Canada Turpentine, Canada Balsam or Balsam of Fir). 
A liquid oleoresin obtained from Abies bcdsamea 
(Fam. Pinacese), a slender evergreen tree indigenous to 
the Northern United States and Canada. The oleo- 
resin occurs normally in reservoirs in the bark and 
forms in vesicles or blisters on the surface, from which 
it is obtained by puncturing them with the spout of a 
can used by the balsam collectors. Canada Turpentine 
is collected chiefly in Quebec. 
Description. — Viscid, pale yellow or greenish yel- 
low, occasionally with a greenish fluorescence ; trans- 
parent ; odor agreeable, terebinthinate ; taste bitter, 
slightly acrid. 
When exposed to the air Canada Turpentine gradu- 
ally dries, forming a transparent varnish ; it solidifies 
on mixing 5 or 6 parts with 1 part of magnesia 
