New YorK AGRICULTURAL EXPERIMENT STATION. 393 
INTRODUCTION. 
NUMBER AND KINDS OF FERTILIZERS COLLECTED. 
During the year 1901, the Station’s collecting agents visited 
179 towns between April 5 and October 16, obtaining 963 
samples of commercial fertilizers. These samples represent 465 
different brands, the product of 60 different manufacturers, each 
manufacturer being represented by from one to 202 brands. 
The subjoined tabulated statement indicates the different 
classes included in the collection. 7 4 
CLASSES OF FERTILIZERS COLLECTED. 
Brands con- Brands con- 
Brands con- taining nitro- taining phos- 
Brands con- taining only Brands con- genandphos- phoricacidand Brands of 
taining only phosphoric taining only phoric acid potash with- complete 
nitrogen. acid. potash. Without potash. out nitrogen. fertilizers. 
15 35 11 21 49 334 
COMPOSITION OF FERTILIZERS COLLECTED. 
The following tabulated statement shows the average com- 
position of the complete fertilizers collected during the year, 
together with a comparison of the guaranteed composition and 
that found by analysis. 
x 
AVERAGE COMPOSITION OF COMPLETE FERTILIZERS COLLECTED. 
Averago 
per ct. 
found 
Per ct. guaranteed. Per ct. found. above 

oe Py pe ee — guaran- 
Lowest. Highest. Average. Lowest. Highest. Average, tee. 
EMT lt a's Catia ish adhe OO. bis Oo. ( Oo’ ico we OOO), SAlLOn ie. Ol) v 0312 
Available phosphoric 

SIRES 22 6 sa: vv bbe OF620 12200 ulti G7Tis 11) Ole vided Gag S S0Re Jod3 
Insoluble phosphoric 
PARED. aie s'6 te oie be 0 asp —_—- —-__-—0.00 «366.10 2.82 —— 
Lo Oa ae 0.75 °12.00° \4,13) 9. 0. 264517 5) 447° 0.34 
Water-soluble nitrogen —_-'_ - ——-_-—s«—“vovg”0.ood 6.40 0.87 — 
Water-soluble phos- 
ORIG CIO ss se ciae's 0.00 10.77 5.04 — 
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 
