ILLUSTRATIONS 



Plate I 



Fig. 1. Crystals of the hydrochloride of the alkaloid from Tylophora brev- 

 ipes. 

 2. Crystals of the free alkaloid from Toddah'a asiatica. 



Plate II 



Fig. 1. Crystals of the nitrate of the alkaloid of Toddalia asiatica from 

 absolute alcohol. 

 2. Same, crystallized from water. 



Plate III 



Fig. 1. Crystals of the free alkaloid from Lunasia amara by quick crystal- 

 lization from alcohol. 

 2. Same, crystallized from amorphous substance on long standing in 

 vacuo. 



Plate IV 



Fig. 1. Crystals of the hydrochloride of the alkaloids from Lunasia amara. 

 2. Crystals of the nitrate of the alkaloid from Lunasia amara. 



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