410 Report or THE INSPECTION WorkK OF THE 
TRADE-VALUES OF PLANT-FOOD ELEMENTS IN RAW MATERIALS AND 
CHEMICALS. 
The trade-values in the following schedule have been agreed 
upon by the Experiment Stations of Massachusetts, Rhode 
Island, Connecticut, New York, New Jersey and Vermont, as 
a result of study of the prices actually prevailing in the large 
markets of these states. 
These trade-values represent, as nearly as can be estimated, 
the average prices at which, during the six months preceding 
March, the respective ingredients, in the form of unmixed raw 
materials, could be bought at retail for cash in our large markets. 
These prices also correspond (except in case of available phos- 
phoric acid) to the average wholesale prices for the six months 
preceding March, plus about 20 per ct., in case of goods for 
which there are wholesale quotations. 
TRADE-VALUES OF PLANT-Foop ELEMENTS IN RAw MATERIALS AND 
CHEMICALS. 
Cte bax 
poun 
WTOLEN 1 AMMONIA: SAlUS "s,s ayaa ag oe aes se 1614. 
NilTOGen, 1h’ MITTAL”. os. css wermhrtis epee he eee ee 15 
Organic nitrogen in dry and fine-ground fish, meat and 
blood; and mixed fertilizers .............. + tice ate + an 161% 
Organic nitrogen in fine-ground bone and tankage........ 16 
Organic nitrogen in coarse bone and tankage..... et e*:- 12 
Phosphoric acid, water-soluble ........ ie ke 6 5 
Phosphoric. acid, Citrave soluble. .......--.0 ss 50a 4th, 
Phosphoric acid, in fine-ground fish, bone and tankage.... 4 
Phosphoric acid, in coarse fish, bone and tankage........ 3 
Phosphoric acid in mixed fertilizers, insoluble in am- 
monium citrate and water .,......... s  shedeaas Ves ceyheonttvelet 2 lala 
Potash as high-grade sulphate, in forms free from muri- 
ates (chlorides); "im) ashes; et... soos... . He 5p Ah 5 
Potash in muriate ..... by aaah: ESS Beh cy by SSR bi PIAA IN! - Aly, 
