PHASES OF DIVIDING SEA-URCHIN EGG. 



131 



TABLE II. 



HEXYL ALCOHOL. 



August n, 10:15 A.M. Fertilized Arbacia eggs were placed at intervals noted 

 in 50 cc. of 0.13 and 0.17 vol. per cent, of Hexyl alcohol respectively, and allowed 

 to remain in them for five minutes. They were then placed in watch glasses 

 quickly observed, and treated as described in the previous experiment. 



susceptibility than those just described for i-amyl alcohol. 

 The eggs apparently maintain throughout the cycle a relatively 

 high resistance to the concentrations of hexyl alcohol here 

 used, with only a slight increase of susceptibility at the time of 



