PANDANACEuE. 535 



jbhe two. Since, however, it dissolves to a sligtt extent in all 

 reagents, we found it impossible to effect a complete separation 

 oi the two portions. The portion freely soluble in carbon 

 bisulphide is probably identical with the resins of our first class, 

 while the other portion seeros to be a distinct resin. 



''Much discussion has taken place with regard to the 

 presence of a volatile acid in Dragon*s blood. It seems certain 

 that none of the varieties of this resin contain benzoic acid; at 

 all events we failed to obtain an extract from any of them with 

 petroleum ether, in which benzoic acid is freely soluble. We 

 tested for cinnamic acid by sublimation, and found it present 

 in the resins of the first and third classes, but not in those of 

 the second and fourth classes. To ascertain the delicacy of 

 this method we made a preliminary experiment with artificial 

 mixtures containing 1 per cent, of cinnamic acid, and found 

 that the acid could be separated out by sublimation from very 

 small quantities of such a mixture. Probably the error as to 

 the presence of benzoic acid arose through confounding it with 

 cinnnmic acid, or possibly from working with a resin in 

 which benzoic acirl had been formed bv nartial oxidation." 



PANDANACEm 



PANDANUS ODORATISSIMUS. Linn./, 



Flg.—Roxh. Cor. PL ?"., U. 94-96. Screw Pine, Kaldera 

 tush {£:ng.), Pandan odoriferante {Fr.), 



Hab. — India, Persia, Arabia. The stems, male Inflorescence 



and seeds. 



Vernacular, ^Keom (Hind.), Keya {Beng.), Eevada (Mar.),^ 

 Kevado (G»2.), Tdzhan-chedi (Taw.), ^Iogali-cliettu,,Gajangi 

 (^e^.)i Tazha, Kaita [MaL), Tale-mara, Kyadage-gida {Can.). 



History, Uses, &C. — The Ketaka or DhuH-pushpika 

 ''dust flower," whose golden spikes of flowers are said to atone 



