214 



DKOSERA ROTUNDIFOLIA. 



CHAP. IX 



and then placed in the phosphate solution : in 2 hrs. 15 m. there 

 was a trace of inflection in one leaf, and in 5 hrs. 30 m. a second 

 was slightly affected; ths inflection subsequently increased, 

 though slowly. Hence diluted alcohol, which, as we shall see, is 

 hardly at all poisonous, plainly retards the subsequent action of 

 the phosphate. 



It was shown in the last chapter that leaves which did not 

 become inflected by nearly a day's immersion in solutions of 

 various salts and acids behaved very differently from one an- 

 other when subsequently placed in the phosphate solution. I 

 here give a table summing up the results. 



