REPORT OF THE CHEMIST. 
feREPORT OF ANALYSES OF COMMERCIAL 
Bae Pet ZEAE RS FOR THE SPRING OF’ 1898." 
L. L. Van Siyke. 
SUMMARY. 
(1) Samples Collected. During the spring of 1898, the Sta- 
tion collected 1183 samples of commercial fertilizers, representing 
739 different brands. Of these different brands, 578 were com- 
plete fertilizers; of the others, 55 contained phosphoric acid and 
potash without nitrogen; 47 contained nitrogen and phosphoric 
acid without potash; 8 contained nitrogen only; 44 contained phos- 
phoric acid alone, and 7 contained potash salts only. 
(2) Nitrogen. The 578 brands of complete fertilizers con- 
tained nitrogen varying in amount from 0.12 to 8.21 per cent, and 
| averaging 2.20 percent. The average amount of nitrogen found 
by the Station analysis exceeded the average guaranteed amount 
by 0.14 per cent, the guaranteed average being 2.06 per cent and 
the average found being 2.20 per cent. 
In 895 brands of complete fertilizers, the amount of nitrogen 
found was equal to or above the guaranteed amount, the excess 
varying from 0.01 to 3.27 per cent, and averaging 0.28 per cent. 

*Reprint of Bulletin No. 145. 
