LITERATURE 71 



Chrystal, 1930. Oxford Forestry Memoirs , XI. 

 CoMSTOCK, 1918. Ann. Ent. Sac. Am., II., 222. 



1924. " An Introduction to Entomology." Ithaca, 179. 

 Eastham, 1929. Parasitology, XXL, 1. 

 Fraenkel, 1935. Proc. Roy. Soc. B., CXVIII., 1. 

 De Gryse, 1926. Trans. Roy. Soc. Canada, XX., Sect. V., 483. 

 Imms, 1925. '' General Textbook of Entomology." 1st Edition. London, 



179. 

 James, 1928. Ann. Appl. Biol., XV., 287. 

 Keilin, 1915. Bull. Sci. Fr. et Belg., XLIX., 1G6. 

 KoLLER, 1929. Biol. Rev., IV., 269. 

 Kopec, 1922. Biol. Bull., XLIL, 323. 



KuHN, 1936. Gesell. iviss. Gottingen ; Nach. aus der Biol., XL, 141. 

 Marchal, 1906. Archiv. Zool. Exp. et Gen., IV., Ser. IV., 485. 

 Nabert, 1913. Zeits. wiss. Zool, CIV., 181. 



Nelson, 1915. " The Embryology of the Honey Bee." Princeton. 

 Perez, 1911. Comp. Rendu Soc. Biol. Paris, LXXL, 498. 

 Weed, 1936. Proc. Soc. Exp. Biol, and Med., XXXIV., 883. 



1936a. Ibid., 885. 

 WiGGLESWORTH, 1933. Quart. Journ. Mic. Sci.. LXXVL, 269. 



1934. Ibid., LXXVIL, 191. 



1936. Ibid., LXXIX., 1. 



