» 
280 Report or tHe Ouemist OF TH 
AVERAGE COMPOSITION OF CHEMICALS AND INCOMPLETE FERTILIZERS. : 








sf ¥ oO 
PER CENT GUARANTEED: PER CENT Founp. gr 
Eas 
s 3 a re 4 g gus 
4 = < W a8) < <i 
Nitrogen in 
Nitrate of soda.... 14.76 16.00 15.16 14.80 15.76 15.59 0.43" 
Sulphate of ammo- * ; 
Pia sce ORs Ge eee eae re ee pt er eee a ie ttn 20.34 0.34 
Dried blood ...... 9.75 ~-10.50 10.10. 9.2% 10.55. = 9.80% sieso 
Dissolved phosphates, 
Phosphoric acid 
Available ....... 10.00 30.00 18.64 11.05 33.27 14.54 0.90 
Water-soluble mine usm bak eee ane sa 3: to: 15t05 pe ore 
Insoliplesce e219. aoe ee one ee 0. 4.22 1.338 
Potash in 
ICANT: ieee a. os 12.40 12.48 12.44 11.94 17.36 13.48 1.08 
Mnriateten, © ccs bs 50. 50.40 50.20 49.74 53.20 50.92 0.72, 
MPP UOAte feces Se oe Peg hee yy He 5 | Hecieeg gp to MR yng 20.60 rete 
Yish scrap 
INIETORENS SA. cases 2 a0, Unies ory Pray ces Wee artis oe te 7.68 0.51 
Phosphoric acid....° - 4:00 1 6.00~ 75.846 “8.84. "7.23 ae oe 
Bone meal 
Nitrogen’. sae6 bes 1,00. . 4.00% 02.50: 253505. 42 0 ee 0.45 
Phosphoric acid..... 9.00 26.67 19:10°..10.93- 28:83, "2iS2z 2.22 
Mixtures containing 
Phosphorie acid 
Available. :.../..- ~8.00" 18.00 -10.20- T7246 -14°229>11206 0.75 
ATISOLUD LOY sre haha teas b ha cee ees Oe eae Oc# 9.50 2.35 Stesiks 
POLAR os & het sie 1.00 10.00- 38.65 0.84 9:85  3.80°-°085 
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 J ersey 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, 
* Below guarantee. 
