234 Report or THE CHEMIST OF THE 
AVERAGE COMPOSITION OF COMPLETE FERTILIZERS COLLECTED. 

f 


Per ct. guaranteed. Per ct. found. E 
c ee aa ———— ee ———s 2 
oO 
= 
o 
1899 , z 
25 
¢- ¢. 8 4&9 Coes 
mn © s BS 
Fog, 6 eo 
4H = <{ — = < < 
Spring: 
IN TLIO MED oc tips Be! ees B Hesse 0.39 8.25. 1.89. .0.37)° 8550  2.04ei0iS 
Available phosphoric acid ... 1.93 14.00 7.78 1.20 15.12 8.76 0.98 
Insoluble phosphoric acid ... .... -..-. si 013° 10802 eee 
POLESH “oth these + ais soe e < ciiaa 0.75 15.00 4.56 0.43 12.95 4.86 0.30 
Water-soluble phosphoric 
LEU Meier stgere Mamas, be, pry Eee RD 0.00 4.43 5.40 
Water-soluble ‘nitrogen’. 0.407 qi) 2a soe 0.00 10.28 0.80 
Fall: 
Nitrogen )s 2... MUL AS. Gata 0.41 4.95 1.52 0.59 4.91 1.65 0.13 
Available phosphoric acid ... 3.55 11.00 8.30 3.44 13.08 9.04 0.74 
Insolnblesphosphiarigntcid’ serv tee se te ee 07. 0.63 9/64" 2520 eee 
S OCA SHS oe 5. “ue ha sss Bae oa oie 1.00 10.00 4.08 0.48 10.75 4.30 0.22 
Water-soluble phosphoric 
BCIAY, ice « in AEs Ge ROE Tc 0.40 10.80 6.07 
Water-soluble nitrogen . ....  ...+ ssee. 0.03 4.79 0.62 
Average for year: 
NUTCR RT hs Bacar Dic ie EE 3 Ch gee ERLE ee 193.0. 12 eee 1.97 0.14 
wvvallable phosphoric acide... Gse.. +.<.. (PYM oet Bs cos 8.80 0.93 
Insoluble phosphoric. acid 0. fan... «Ae e ty ote ee Aes Fite 
POLASD Hee sist 5 oe ey + ARs ep: Mins ee alee 4.48 6 ln eee 4.76 0.28 
Water-soluble phosphoric 
0 ee en 2 eee, ee ke oie see ees iit aie,) aden, ges Sua 5.55 
Water-soluble nitrogen 5255... 8 saa% seen Se ates eee Cua ores 0.75 



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, 
