624 PROCEEDINGS OF THE ACADEMY OF [Sept., 



curred, with the exception of about twenty newly hatched callows that 

 had succumbed to the adverse conditions attending their hatching.* 



* I append an irrelevant note concerning an abnormal form, uncommon in 

 my ant-nests. 



On August 25, 1903, I found, in one of my artificial nests of Stenamma fulvinn, 

 a recently hatched gynandromorphic ant, bilaterally asymetrical. The size, 

 form, color and wings on the left side were those of the normal male, while the 

 right side was in all respects like that of a normal worker. 



Regarding such abnormal insects, Boveri {Ueber Mehrpolige Mitosen als Mittel 

 zur Analyze des Zellkerns, 1902) presents the hypothesis that the first cleavage 

 of the egg, marking the future axis of the body, occurred previous to fertilization; 

 that the spermatozoan then entered one blastomere, producing on that side 

 the female form, while the other blastomere developed parthogenetically into 

 the male form. 



