206 



AMERICAN MANURES. 



ANALYSES OF WHANN'S RAW BONE SUPER- 

 PHOSPHATE. 



Percentage, or amount contained in 100. 



From the mean of the above analyses, we deduce 

 the following amounts contained in a ton, or 2000 

 Ibs., together with the value of a ton to the farmer : 



199-80 Ibs. Water @ $0.00 per Ib. $0.00 



9-80 " Actual Ammonia @ 0.25 " 2.45 



18-80 " Nitrogen in organic matter. @ 0.15 " 2.82 



4-00 " Potash @ 0.08 " 0.32 



67-20 " Soluble Phos. Acid @ 0.12J " 8.40 



287-60 " Insoluble " " @ 0.00 " 0-00 



Total value as Superphosphate $13.99 



Value of bags (say) 2.00 



Total value to farmer $15.99 



The above Phosphate is sold at $52 per ton, 

 involving a loss of $36.01, or 225 per cent., to 

 the farmer on every ton he purchases ; or, in 

 other words, he pays 3i times what it is worth. 



