body of the organism an extremely plump appearance. 



In the case of cane-sugar the organism survived in 1—8^ solutions. 



rounded" In solutions ;-h»y> .Vj those chunks uere m iv m>tie t -.d.a<. 



as in the preceding medium. 



like the last being produced by solutions of to/ and stronger. 



Chilomonas paramaecium 



The organism survived in 1 — 8^ milk-sugar solutions. In a 40 

 solution the corpuscles became larger and the body increased both in 

 breadth and thickness while it rather decreased in length. In an 80 

 solution these changes were the most remarkable. 



Of the \~lo/ cane-sugar solutions in which it could survive, those 

 above 2«/ produced changes on its body like those caused by milk-sugar. 

 This organism seemed to adapt itself well to 1—6^ grape-sugar, 1—40 

 glycerin and common salt. 



Euglena viridis. 



Solutions of 1—17^ milk-sugar, 1— 13# cane-sugar, 1—110 grape- 

 sugar, l-5#? glycerin and more than 2o/ common salt were found to 

 be suitable to the life of this organism. Its body is highly metabolic, 

 so that no distinct change except the enlargement of the corpuscle: 

 could be observed. 



Paramaecium caudatum. 



This organism was found to survive in 1— 8o/„ milk-sugar, 1-7'/ 



case of Cotpidium eotpoda. 



Mallomonas sp. 



and had the usual effects" 



In general, when the concentration of the external medium increased 



