FISH-FERTILIZERS. 



319 



Valuation per ton of two thousand pounds : — 



104.4 pounds of phosphoric acid .... 

 75.4 pounds of nitrogen ..... 



75.6 pounds of potassium oxide .... 



Halibut Fish-Refuse. 

 (Hon. J. J. H. Gregory, Marblehead, Mass.) 



Moisture at 100° C. 



Organic and volatile matter . 



Ash constituents 



Nitrogen ..... 



Phosphoric acid 



Sand, &c 



$6 39 



15 08 



3 03 



$24 50 



Per cent. 



47.22 



79.22 

 20.78 



2.43 



8.56 



1.82 



Valuation per ton of two thousand pounds : — 



171.2 pounds of phosphoric acid . . 

 48.6 pounds of nitrogen .... 



Fish-Liver Refuse. 

 (Hon. J. Ji H. Gregory, Marblehead, Mass.) 



Moisture at 100° C. 

 Organic and volatile matter 

 Ash constituents 

 Nitrogen 

 Phosphoric acid 

 Sand, &c. 



$10 27 

 9 72 



$19 99 



Per cent. 



50.58 

 98.08 



1.92 



4.35 



1.02 

 .16 



Valuation per ton of two thousand pounds : — 



87.0 pounds of nitrogen 



20.4 pounds of phosphoric acid 



$17 40 

 1 23 



$18 63 



Our commercial fish-fertilizers, which were hitherto almost 

 exclusively obtained from the Menhaden Fish-Rendering- 

 Works, have of late received valuable accessions from other 

 branches of our fish-industry, as may be noticed from the 

 preceding analytical statements. It is quite desirable that 

 a larger proportion of the animal-refuse matter from our 

 cod-fisheries should be added to our home resources of effi- 

 cient fertilizing materials. 



