APP. l] RESULTS. 303 



Chaptee XVII. p. 294. General experiments. 



Experiment No. 1. 



An experiment under very favourable conditions gave the 

 values 



A (dry weight of Spirogyra used) =21-5 grs. 



B (dry weight of Spirogyra obtained 



after 24 hours) = 24-1 grs. 

 For twenty-four hours. 



Increase in dry weight = 2-6 grs. 

 Increase of proteids = -8 grs. 1 



(N X 6-3) I foi" 21-5 grs. of 



Increase of cellulose = 1-3 grs. J Spirogyra. 



Experiment No. 2. 



Using leaves of Sparganium natans — sixteen days. 



The p.c. are calculated for material dried at 100° C. 

 Values for a set of experiments with hemp seed. 



Experiment No. 3. 



Weights of three portions of original seed. 



A. B. C. 



10-0 grs. 10-0 grs. lO'O grs. 



Weights of A, B and C after experiment. 



A. B. C. 



10-0 grs. 4-2 grs. ll'l grs. 



