156 THE CHEMISTRY OF DORYPHORA SASSAFRAS. 



H.RoCHEBRnNK — " Moiiimia rolundifolia," Toxicol. Africaine, i., 1897. 



Through Aston {q.v. A. A. A. 8.). Wrongly stated as an Australian 



tree. 

 IS.BouRGOiN et Verne — "Pf.umns boldMS," J ouvn. de Pharni. et de Chimie, 



(4), 16, 191. Through Pharm. Journ., (3), iii., 1872, 323. 

 le.GREsHOFF — "The Poisons of the Lauraceae," Ber. deut. chem. dea. 23, 



1890, 3546. 

 17. L)oBBiE and Ladder — " Hydroxycodeine, a new alkaloid from Opium." 



Jonrn. Clieni. See. 99, 1911, 34. 

 I8.B0EHM — "Curare Alkaloids, " Arch. d. Fharni. 235, 660. Through 



Pictet, "Vegetable Alkaloids,' p.393; VVintersteiu u. Trier, "Die 



Aikaloide,'" s.l56. 



Postscript: added -hdy -h-d, 1912. — The following observa- 

 tions, referring to the action of alkaloids on Australian frogs, 

 were offered by Mr. E. C Gre}'^, B.Sc, Junior Demonstrator in 

 Physiology, after the paper was read — With reference to Dr. 

 Petrie's communication on the Chemistry of Doryphora, it was of 

 importance to bear in mind that the behaviour of Australian 

 frogs towards alkaloids had not yet been properly ascertained. 

 Moreover the same alkaloid sometimes affected different frogs in 

 different ways. He had observed the effect of Brucine on some 

 Austi'alian frogs, and had found that the strongly muscular 

 Limnodynastes showed convulsions, whereas ncme were produced 

 in any of the Hylas examined. 



