New YorK AGRICULTURAL EXPERIMENT STATION. 391 
ples of commercial fertilizers. These samples represent 540 dif- 
ferent brands, the product of 60 different manufacturers, each 
manufacturer being represented by from one to 180 brands. 
The subjoined tabulated statement indicates the different 
classes included in the collection. 
CLASSES OF FERTILIZERS COLLECTED. 
Brands con- 
Brands con-| taining Brands con- 
Brands con- taining ni- phos- taining ni- 
Brands con- | taining only| Brands con-; trogen and phorice trogen and | Brands of 
taining only phos- taining only phos- acid potash complete 
nitrogen. phoriec potash. phoric acid | and potash without. fertilizers. 
acid. without without phosphoric 
potash. nitrogen. acid. 
12 39 12 29 70 1 377 
COMPOSITION OF FERTILIZERS COLLECTED. 
The following tabulated statement shows the average composi- 
tion of the complete fertilizers collected during the year, together 
with a comparison of the guaranteed composition and that found 
by analysis. | 
" AVERAGE COMPOSITION OF COMPLETE FERTILIZERS COLLECTED. 
Per Cr. GUARANTEED. | Per Cr. Founp. Average 
| per ct. 
|————_——_———_———_—_—_———_-_| found 
. above 
guaran- 
Lowest. | Highest. | Average. | Lowest. | Highest. | Average. tee. 
ee ee eee | i S| ee 
Nitro mendes: wan tere cc: 0.41 8.23 2.04 Onilares ier Seae Orem 0.07 
Available phosphoric | 
Ever (0 le eee ae 1.50 12200R | fa6e 0.06 15.50 8.50 0.83 
Insoluble phosphoric | 
BCI isco crates —- — — 0.01 5.84 2.05 
IPOtASD). an) taton shoe he 0.50 15.00 4.55 0.03 13.33 4.78 0.23 
Water-soluble nitrogen| —— == eed 0200") 18291 1.02 
HECIES eee ias, spaelel arena a | | | 
Water-soluble phos- | 
phorie acid........ — — — 0.00 | 11.08 5.40 —— 
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. 
