270 Report of the Department of Chemistry of the 



/ 



/ 



p^%^. RY 'JHHSSF.** 



Gfl4MS PRY SUBSTANCE. +2 



MILLIGRAMS P?0 5 APPLIED 



1901-02 

 1903-OA 



300 

 280 



240 



200 



190 



160 



140 



120 



100 



ao 



eg 



10 



20 

 



100 m -«Q0 600 600 1000 1200 MOO ISOO 



Fio. 9. — Relation between P 2 5 Supplied and Dby Substance Pboduced by 



Peas, 



