CRUDE DRUGS. 675 



BiSABOL, or East Indian myrrh, is exported from Eastern 

 Africa and Asia ; it closely resembles true myrrh, but is distin- 

 guished from it by the ethereal solution not becoming reddish 

 with bromine vapor. Furthermore, on mixing 6 drops of a 

 petroleum ether solution (one part of myrrh to 15 of ether) with 

 3 c.c. of glacial acetic acid and then adding this liquid carefully 

 to 3 c.c. of concentrated sulphuric acid, a rose-colored zone is at 

 first developed, and finally the entire acetic acid solution assumes 

 the same color. With genuine myrrh the solution is colored a 

 very pale rose color. 



Allied Plants. Opopanax is a balsam-like product obtained 

 from Commiphora Kataf, a plant indigenous to Arabia, and is 

 supposed to be the Myrrh mentioned in the Bible. It yields from 

 6 to 10 per cent, of a greenish-yellow volatile oil with a pleasant 

 balsamic odor; and also contains opo-resinotannol (a compound 

 not yielding umbelliferone on distillation) both free and com- 

 bined with ferulaic acid ; free ferulaic acid ; vanillin, and a gum 

 containing bassorin. 



Mulu Kilavary is a gummy exudation obtained from Com- 

 miphora Berryi, a plant growing in India. It occurs in yellowish- 

 brown or dark brown translucent fragments, having a conchoidal, 

 oily fracture, and consists chiefly of gum, with a small quantity 

 of a tasteless resin and a volatile oil. 



TEREBINTHINA. TURPENTINE. An oleo-resin ob- 

 tained from Piniis pahistris and other species of Pinus (Earn. 

 Coniferas), evergreen trees (Figs. 47, 48) indigenous to the 

 Southern United States (p. 81). The oleo-resin is secreted in 

 the sapwood and is obtained by making triangular incisions in 

 the bark and wood in the spring; it flows inio cavities (or boxes) 

 made lower down on the trunk, from which it is dipped into 

 barrels or other receptacles. The product of the first year's cut- 

 ting is of superior quality and is known as " virgin " turpentine. 

 It yields about 15 per cent, of oil of turpentine, while the product 

 of the second or third year yields 10 per cent. 



Description. In yellowish, opaque masses, brittle in the 

 cold ; lighter internally, sticky and more or less shiny ; odor and 

 taste terebinthinate. One part dissolved in 5 parts of alcohol 

 gives a clear solution having an acid reaction, 



