34 



U. SUZUKI. 



io days (on the 20th April) they were carefully removed from 

 the sand, washed well to free them from all trace of ammonia, 

 dried and analyzed.* 



Number of shoots. 

 Length. 



Total dry weight. 



Dry weight of 100 shoots. 



a) 



Shoots, treated with 

 gypsum 

 for io days 

 (io-2oth April). 



727 



S-io cm. 

 1.590 g. 

 0.219 g. 



b) 



Shoots, treated with 

 ammonium chloride solu- 

 tion for 10 days 

 (io-2oth April). 



667 



S-io cm. 



1.538 

 0.231 



In 100 parts of dry matter. 



a) b) 



Total nitrogen. 6.69 7.62 



Albuminoid nitrogen. 3.17 3.05 



Asparagine nitrogen. 0.42 0.62 

 Nitrogen in phospho- 



tungstic precipitate. 1.12 1.77 



Other nitrogen. 1.9S 2.18 



In 100 parts of total nitrogen. 





a) 



b) 



Total nitrogen. 



1 OO.O 



IOO.O 



Albuminoid nitrogen. 



47-4 



40.0 



Asparagine nitrogen. 



6-3 



8.1 



Nitrogen in phospho- 







tungstic precipitate. 



16.7 



233 



Other nitrogen. 



29.6 



28.6 



Every 100 shoots contained : — 



Ratio. 



a) b) a) b) 



Total nitrogen. 0.0147 0.0176 ioo: 120.0 



* During the experiment, the temperature varied between 15 0 C. and 38 0 C. The 

 shoots treated with the ammonium chloride solution began to suffer, (perhaps owing 

 to the concentration of the solution due to evaporation) and so they could not be kept any 

 longer. 



