﻿FISH-SCRAP FERTILIZER INDUSTRY OF ATLANTIC COAST. 



33 



Table VI. — Analysis of fish — Continued. 

 DRIED. 



Constituent. 



Lime 



Phosphoric acid 



Silicic acid 



Potash 



Soda 



Magnesia 



Chlorine 



Organic matter and loss 



Proportion. 



Pen 



100.00 



Browne a reports the results of an examination of the composition 

 of sprats, " a well-known fish." A specimen was bruised in a mortar 

 and dried at 212° F. One hundred parts of this contained : Water, 

 (53.65; oil, 18.60; solids, 17.75. Of the solids, nitrogen constituted 

 11.53 per cent, equivalent to 1.94 per cent of the original sample, and 

 ash, 2.21 per cent. The composition of the ash is given in the fol- 

 lowing table : 



Table VII. — Composition of the ash of two samples of sprats, taken in 1847 



and 1848. 



Constituent. 



SiO s 



Phosphoric acid. 

 Sulphuric acid... 



Lime 



Magnesium 



Peroxide of iron. 



1847 



1848 



Per cent. 



Per cent. 



Trace. 



0.30 



43.52 



40.49 



Trace. 



1.40 



23.57 



27.23 



3.01 



3.42 



.28 



.65 



Constituent. 



Potash 



Soda 



Chloride of potassium. 

 Chloride of sodium . . . 



Total. 



1847 



Per cent. 

 17.23 

 1.19 



Per cent. 

 21.89 



2.31 

 2.31 



100. 00 



Of interest in this connection are the results of analysis of the flesh 

 and bones of the whale given in Tables VIII and IX. The analysis 

 is by Stockhardt. 2 



Table VIII. — Analysis of flesh of the whale. 



Constituent. 



Raw. 



Perfectly 

 dry (in- 

 cluding 

 fat). 



Without 



fat and 



entirely 



dry. 



Water 



Fat 



Flesh 



Mineral constituents (ash) 

 Nitrogen 



Per cent. 

 44.50 

 22.81 

 32.10 

 1.04 

 4.86 



Per cent. 



Per cent. 



40.70 



57.44 



1.86 



96.80 

 3.20 

 14.60 



Table IX. — Analysis of steamed bones of the whale. 



Constituent. 



Proportion. 



Water 



Cartilaginous mass (glue) . 



Fat. 



Bone phosphate of lime . . 

 Carbonate of lime 



Per cent. 



3.84 

 3 34.60 



1.34 

 * 51. 66 



8.56 



i American Muck Book, 1856, p. 273 et seq. 

 2 Chem. Ackersmann, 16, 52 (1870) .- 



3 3.5 per cent nitrogen. 



* 23.66 per cent phosphoric acid. 



