CUAP. IV. THE EFFECTS OF HEAT. 75 



water does not cause any inflection : I suddenly placed 

 four leaves, taken from plants which had been kept for 

 several days at a high temperature, generally about 

 75 Fahr. (23-8 Cent.), in water at 45 (7'2 Cent.), but 

 they were hardly at all affected : not so much as some 

 other leaves from the same plants, which were at the 

 same time immersed in water at 75 ; for these became 

 in a slight degree inflected. 



