326 



BOTAMCAI. GAZETTE 



[novembeh 



was determined separately (by the method previously described); 

 so the Kjeldahl determination was conducted without any modiflca- 



FlG. 5. — Xitrogen compounds in leaves 



lion for nitrates. (Previously zinc was used, but this did not reduce 

 any nitrate. Experiment with a known solution o. 5 per cent KN0 3 , 



