iyio] 



WOO—AMARANTIIUS 



3 2 5 



because the fall at this time is only from 6.03 to 5.84 per cent 

 (almost within experimental error). 



Fig. 4. — Nitrogen compounds in stems 



Soluble protein. — Soluble protein in F x and F 2 is computed 

 from the Kjeldahl nitrogen determination. The nitrate nitrogen 



