RESISTANCE OF RHABDITIS TO ACIDS. 99 



5. In the case of worms whose posterior ends had been cut off 

 these substances in question entered through the cut end, as 

 \\i-ll as the mouth. 



6. The conclusion to be drawn from these results seems to U- 

 that the impermeability of the cuticle is responsible for the re- 

 -i-^tance of Rlmhditis. 



LITERATURE CUED 



1. Hcnneberg, W. 



"oo Zur Binluxii- -Ics Easigaales (Anguillula aceti). Berlin. Gebr. Unger. > 

 (Cited from Zool. Cent.. 1900, p. 439). 



2. Abbott, J. F. and Richard*, E. L. 



'i i The Lethal l-.tlect of Pure L)islille<l Water on the Vineg;r J./M/.J 



aceti). BIOL. BULL . Vol. 21. 



