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50 THE CONNECTICUT AGRICULTUEAL 



Mr. Cook having taken the trouble to prepare a quantity in the 

 best manner, it has been submitted to analysis by the Station with 

 the figures subjoined, the writer desiring to give full investigation 

 to any scheme for utilizing materials that are going to waste. 



The results of the analysis plainly demonstrate that night soil, 

 afrits best, is not rich enough to warrant manufacturing by the 

 Pollard process, and show, what was indeed suificiently evident 

 without the analysis, that the Pollard Patent has no real value. 



Analysis of Improved Night Soil Fertilizer. 



544, made by F, C. Cook, New Haven, according to the 

 specifications of the Pollard Patent. 



Moisture, 15.70 



Organic and Volatile Matters,*. . 14.80 



Hydrated Sulphate of Lime, i ( Water, . ) 13.42 



(same as uuburued plas- >■ containing ^ SulplniricAcid, |- 29.81 64.10. 



ter or gypsum,) ) (Lime, ) 20.87 



Lime as carbonate or phosphate, .90 



Magnesia " '' -.. .29 



Potash " ■ " -- .59 



Soda " " ---- .73 



Iron Oxide,..- J... .83 



Phosphoric Acid 1 .25 



Chlorine, trace 



Sand, . - .81 



1 100.00 

 * With Nitrogen 1.19 



The sam])le contains at least 95 per cent, of matters that have 

 no fertiliKing value with exception of the plaster, which is com- 

 mercially worth |6 per ton, or 30 cts. per 100 lbs. The value of 

 the other ingredients is nothing commercially except in case of 



Potash worth 7 cts. per lb. = 4 cts. for -^\r lb. 



Phosphoric Acid " 9 " = Hi " H " and 



mtroyen " 22^ " = 27 " li " 



Add for Plaster, 20 " 64 " and 



We have the total value, 6^i cts. per 100 lbs. 



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The commercial value per ton is accordingly |12.50, or, exclu- 

 sive of plaster, |8.50, a sum insufficient to pay the cost of manu- 

 facturinfj: and hanillino;. If the manufacture were undertaken 

 with the common run of privy night soil, the value would be 

 $2-'|3 less per ton, as appears from the valuation of sample 543. 



