New York AGRICULTURAL EXPERIMENT STATION. 399 
NUMBER AND KINDS OF FERTILIZERS COLLECTED. 
During the spring of 1904, the Station’s collecting agents vis- 
ited 98 towns between March 26 and May 9, obtaining 468 sam- 
ples of commercial fertilizers. These samples represent 3871 
different brands, the product of 49 different manufacturers, each 
manufacturer being represented by from one to 145 brands. 
The subjoined tabulated statement indicates the different 
classes included in the collection. 
CLASSES OF FERTILIZERS COLLECTED. 
| Brands con- Brands con- 
Brands con- | taining ni- taining phos- 
Brands con- | taining only Brands con- | trogen and phoric acid Brands of 
taining only phosphorie taining only | phosphoric and potash complete 
nitrogen. acid. potash. acid with- without fertilizers. 
| out potash. nitrogen. 
a | | 
7 22 4 | 16 47 275 
COMPOSITION OF FERTILIZERS COLLECTED. 
The following tabulated statement shows the average composi- 
tior of the complete fertilizers collected, together with a com- 
parison of the guaranteed composition and that found by analysis. 
AVERAGE COMPOSITION OF COMPLETE FERTILIZERS COLLECTED. 
| 
Per Cent. GUARANTEED. | Prr Cent. Founp. Average 
| per ct. 
| found 
| above 
| Lowest. | Highest. | Average. | Lowest. | Highest. | Average. | guar- 
| antee. 
Nitrogen............| 0.50 9.88 2.01 | 0.54 9.74 2.12 0.11 
Available phosphoric) | 
ECGs eset Peele50n a) TOL00 oC alle 26m clness 8.52 0.90 
Insoluble phosphoric) | 
ACID 2 cceiato sine ae ote | === 0.04 | 6.52 1.80 
Botashye sorte te 0.50 10.00 4.50 0.16 | 10.74 4.77 0.27 
Water soluble nitro- ; | 
PED Sy Ga ie 0.00 | 9.62 | 1.01 | ———— 
Water-soluble phos-' 
phoric acid........ | —_ |’ ———_ } ———— | 0.04 | 8.96 | 3980) 
TRADE-VALUES oF PLANT-Foop 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 
