504 



U. SUZUKI. 



NITRATES NITROGEN. 



Dry matter 

 used 



Temper- 

 ature 



Pressure 



Vol. of NO. 



gas 



Nitrogen 

 found 



Conti-ol plants (24th) 



i9f 



' sugar . 



i9f 



sugar 



Gram. 

 0.904 



°C. 

 23 



24 



m. m. 

 761 



0.888 



c. c. 

 5-5 



5-6 



4.0 



4.1 



2.2 



2.0 



Gram. 

 0.0032 



0.0023 



0.0012 



IV. EXPERIMENT WITH YOUNG BARLEY 

 PLANTS. 



TOTAL NITROGEN. 



Dry matter 

 used 



Baryta water 

 replaced 



Nitrogen 

 found 



Control plants 



Plants in day light 

 Plants in dark 



Gram. 



c. c. 



0.468 



12.4 



>» 



12.4 



0.480 



13.0 



»? 



13.2 



0.461 



14.5 





14.7 



Gram. 

 0.0243 



0.0256 



0.0286 



I C. c. baryta solution = 0.001955 gram, nitrogen. 



