224 REporT OF THE CHEMIST 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 phosphoric 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 whole- 
sale quotations. 
TRADE VALUES OF PLANT-Foop ELEMENTS IN RAW MATERIALS AND CHEMICALS. 
1899. 
Cts. per 
pound. 
Nitrogen“ in ‘ammonia’:aalts *o.')4. 4 $86 ir. wala ete es ee 15 
Nitrogen in nitrates... o./. scl oe vies 9 = 5's sieceaie a > ora cl a ohn 12% 
Organic nitrogen in dry and fine-ground fish, meat and.blood, and 
mixed fertilizers a... y.c.5n i ».cinvy ones 2 ee paket s oes ate oe 14 
Organic nitrogen in cotton-seed meal and castor-pomace............ 12 
Organic nitrogen in fine-ground bone and tankage ................ 14 
Organic nitrogen in coarse bone and tankage ..................00. 10 
Phosphoric -acid,, waler-sOluple se fy ve spo sens wicre, ss erekess ele ele heen 4% 
Phosphoric acid); citrate-soluble’ o/c. 4.4.) 3 44s 4 as a> Le 4 
Phosphoric acid in fine-ground fish, bone and tankage ............. + 
Phosphoric acid in coarse fish, bone and tankage ................. 2 
Phosphoric acid in cotton-seed meal, castor-pomace and wood ashes.. 4 
Phosphoric acid in mixed fertilizers, insoluble in ammonium citrate 
BO ALOT cick s saat ve a a'ahs es aiyse «We Werg NOhle ote let ye teint oe 2 
Potash as high-grade sulphate, in forms free from muriates (chlor- 
16s) ,.1n ashes, \ebee 0 2. fe Ras GA ERD bo alee ee 5 
Potash. In--MuUriates sow oor swe eatewiiee nes iv are oie 4% 
COMPARISON OF SELLING PRICE AND COMMERCIAL VALUATION. 
Giving to the different constituents the values assigned in the 
schedule for mixed fertilizers, 14 cents a pound for nitrogen, 44 
