5o6 u. SUZUKI. 



V. EXPERIMENT WITH POTATO PLANTS. 



TOTAL NITROGEN. 





Dry matter 

 used 



Baryta water 

 replaced 



Nitrogen 

 found 





Gram. 



c. c. 



Gram. 





I. 0.468 



1 0.0 





Control plants | 







1 0.0183 





2. ,, 



lO.I 



• 





I. 0.469 



10.4 





Plants in dark | 







1 0.0193 





2. 



10.6 



NITRATES NITROGEN. 





Dry matter 

 used 



Temper- 

 ature 



Pressure 



Vol. of NO. 



gas 



Nitrogen 

 found 







Gram. 



°C. 



m. m. 



c. c. 



Gram. 



Control plants | 



I 



0.936 



24 



758 



3-1 



1 0.0017 





2 







) > 



2.9 



Plants in dark | 



I 



0-937 





)> 



2.4 



1 0.0014 





2 







)) 



2.8 



I c. c. baryta solution = 0.00183 gram, nitrogen. 



