31 



The Z-alkaloid, which constituted about 0.3% of the dried plant, was 

 soluble in ethyl and methyl alcohol, chloroform, acetone, and less so in 

 benzene and carbon tetrachlorid. On standing several months, it 

 resinified to a white substance without change in its toxicity or solu- 

 bility. On long standing, an alcohol-insoluble crystalline material 

 separated to the extent of about 1% of the original mass, but on account 

 of the small quantity obtained its physiological action could not be 

 determined. Various compounds of the Z-alkaloid were prepared ; and 

 from the data obtained it appeared that it is not the same as the com- 

 pound named Zygadinein which was obtained at the Wyoming station. 



@ 



