84 



J. M. D. OLMSTED 

 TABLE I 



TABLE II 



Table II shows that the per cents were the same whether 

 the flasks were open to the air or entirely submerged in water. 

 If the worms had been responding to oxygen and not to gravity, 

 we should expect in this experiment to have found them in the 

 bottom near the mouth, where oxygenated water could enter 

 from the jar outside. They were actually found in the region 



