158 Report or THE DrrecToR OF THE 
Per cent, 
Total phosphoric acid, maximum amount guaranteed ....... 12.509 
Total phosphoric acid, minimum amount guaranteed ....... 10.221 
Total phosphoric acid, amount found by analysis........... 10.830 
Potash, maximum amount guaranteed .............sse+eee 5.576 
Potash, minimum amount guaranteed..............eee sees 4.862 
Potash, amount found by analysis......<...... sees 5.279 
Average selling price to farmers .... 6.0.00. + 040+ os ost neem 
If we consider the amount of nitrogen, phosphoric acid and 
potash found as in each case 100, the following will show the 
relative amounts in the minimum and maximum guarantees of 
each constituent : 




DE CTOP OME eer Sele t hits ac ictie. sels SPIN ONES eee 100 119.2 93.6 
‘Available phosphoric acid............... 100 121.6 96.7 
‘EGtalb phosphoric acid 3; .\scc.c)s Went pretest 100 115.5 94.4 
PIOCABD AEG areca dintty oe ichos sc oleae eee maar ae 100 105.6 92.1 
Average init, ass FF 26 as 2 Beets 100 115.5 94.2 
» ——— 





It will be seen that this year, as has been shown also hereto- 
fore, the manufacturers appear to be able to keep much nearer 
to their minimum guarantees, since upon an average they exceed 
the former only 5.8 per cent., while they fall short 15.5 per cent. 
in maintaining the maximum guarantee. 
If we estimate the average value of their fertilizers, allowing 
even maximum prices for the several constituents, as 183 cents 
per pound for nitrogen, 54 cents for available phosphoric acid, 
2 cents for insoluble phosphoric acid, and 43 cents for potash, 
we find the average fertilizer to be worth as follows, per ton of 
2,000 pounds: 
58.8 pounds nitrogen at 184 cents. <...,.... +++ ¢.5 pee $10.88 
166.7 pounds available phosphoric acid at 5} cents ........ : de 
49.9 pounds insoluble phosphoric acid at 2 cents....... Ap 1 00 
105.6 pounds potash at 44 cents .- 2... 65 0...0. 2 oe ee 4 75 
Dota sss! oi calee ate sgl Pie aso thar te te lel ators eos $25.80 
The average selling price of these 179 brands was $32.25 per 
ton, $6.45, or 25 per cent., above the average valuation of these 
goods. 

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