106 EXPERBIENT STATION. [Jan. 



tons of fertilizer of all kinds, and in doing this have drawn from 

 OA'cr 15,000 bags. Thej visited 138 towns, called npon 329 dif- 

 ferent agents, and drew 1,180 samples representing 527 distinct 

 brands; this is 117 more samples, representing 45 more brands, 

 than were taken during the previous year. 



(c) Ferlilizers analyzed. 

 Seven liniidred and two analyses have been made during the 

 year's ins})ection ; they may be grouped as follows: — 



Complete fertilizers, 431 



Fertilizers furnishing' phosphoric acid and j^otash, such as ashes, IG 



Ground bone, tankage and iish, GS 



Nitrogen compounds, both organic and mineral, .... 87 



Potash compounds, 42 



Phosphoric acid compounds, 33 



Lime compounds, .......... 25 



702 

 (d) Trade Valnes of Ferlil'izinc) Ingredients. 



At a meeting of representatives of the experiment stations 

 of New England, Ncav York and New Jersey, held during the 

 first week of March, 1012, the following table of trade values 

 was adopted. The trade values represent the average cash cost 

 per pound at retail of nitrogen, ]')otasli and phosphoric acid as 

 furnished by chemicals and standard unmixed fertilizing mate- 

 rial in the principal markets in New York and New England. 

 The data which arc used in obtaining these values are the aver- 

 age wholesale quotations of chemicals and raw materials as 

 found in commercial ])ublications from Sept. 1, 1911, to March 

 1, 1912, plus about 20 per cent. 



