X] THE PLANT BASES 167 



REFERENCES 

 Books 



1. Abderhalden, B. Biochemi.sches Hamllexikon, v. Berlin, 1911. 



2. Allen's Commercial Organic Analysis. Vegetable Alkaloids (G. Barger), 

 Vol. 7, 1913, pp. 1-94. 



3. Barger, G. The simpler Natural Bases. London, 1914. 



4. Henry, T. A. Tlie Plant Alkaloids. London, 1913. 



5. Winterstein, E., und Trier, Q. Die Alkaloide. Berlin, 1910. 



