Experiment Station Meport, 



125 



YALUATIOK OF FERTILIZERS, AKD 

 FERTILIZER AIS'ALYSES. 



Trade Values of Fertilizing Ingredients in Eaw 

 Materials and Chemicals. 



* Dissolved from two grams of phospbate, unground, by 100 c. c. neutral solution of am- 

 monia citrate, sp. gr. 1.09 in 30 minutes at 40 deg. C., with agitation once in five minutes; 

 commonly called " reverted " or backgone phosphoric acid. 



The above trade values are the figures at which, on March 

 1, 1884, the respective ingredients could be bought at 

 retail, for cash, in our markets in the raw materials, which 



