GALLOWAY: NON-SEXUAL REPRODUCTION IN DERO VAGA. 137 



least resistance along the inside of the body wall, rather than penetrate 

 the body wall, as its course actually indicates. I am aware that this 

 suggestion is based upon general considerations and upon analogy merely, 

 while the care shown throughout von Bock's paper gives abundant ground 

 for the trustworthiness of his results. 



I have great pleasure, finally, in expressing the sense of obligation I 

 feel to Dr. E. L. Mark, under whose direction this work has been done, 

 for his advice and assistance throughout its prosecution. 



