﻿34 



BULLETIN" 2, U. S. DEPARTMENT OP AGRICULTURE. 



The following table contains a number of analyses of fish fertilizers, 

 reported by Atwater : x 



Table X. — Analysis of commercial fish scrap, quoted from Atwater. 



Kind of fertilizer. 



Moisture, 



Organic 



matter. 



Phos- 

 phoric 

 acid. 



Nitrogen. 



Ammonia 

 equiva- 

 lent to 



nitrogen 



Oil. 



DRY GROUND FISH. 



Ground fish, G. W. Miles 



Fish guano^ G. W. Miles 



Charles Island guano, G. W. 



Miles 



Allyn's fertilizer 



Do 



Dry ground fish, Quinnipac 

 Fertilizer Co 



Do 



Do 



Do 



Acidulated fish, Quinnipac 

 Fertilizer Co. (dried fish scrap) 



"Dry fish," Green Bros 



" Dried fish " 



"Dry fish" 



"Fish scrap" 



"Dry fish" 



" D ry fish "( half dry fish scrap ) . 



Fishscrap, "half dry" 



Fish scrap, "half dry" (crude 



fish pomace) 



" Fish scrap " 



Per cent. 

 18.74 

 21.96 



8.63 



Per cent. 

 61.82 

 50.99 



71.79 



6.34 



14.64 

 10.85 

 13.45 

 8.22 



36.53 

 11.04 

 9.37 

 11.00 

 7.74 

 7.59 



71.31 



68.40 

 63.97 



39.89 

 64.01 





Per cent. 

 19.44 

 27.05 



19.41 

 16.37 

 22.35 



22.23 

 20.75 

 22.58 

 20.41 



23. 58 

 24.95 

 19.92 

 20.17 



Per cent. 

 7.65 



7.74 

 6.17 

 7.90 



6.67 

 7.21 

 7.55 



8.11 



i 7.09 

 10.51 

 7.10 

 7.12 



40. 95 



25.10 

 56.83 



43.06 

 56.17 



15.99 

 18.73 



6.23 



7.49 



Per cent. 

 8.06 

 6.07 



7.50 

 7.38 

 7.96 

 8.25 



4.11 

 8.60 

 8.13 

 7.46 

 7.10 

 7.79 

 7.65 

 5.33 



5.49 

 3.63 



Per cent. 

 9.78 

 7.36 



10.73 

 10.68 

 9.56 



9.11 

 8.97 

 9.66 

 10.00 



4.99 

 10.44 

 9.86 

 9.05 

 8.61 

 9.46 

 9.28 

 6.47 



6.66 

 4.41 



Per cent. 

 6.71 



6.35 

 7.33 



7.68 

 '<3.'63 



3.93 



8.29 



1 Per cent soluble in water, 1.76; per cent soluble in ammonium citrate, 2.47. 



Additional analyses of fish fertilizers, reported by Johnson, 2 are 

 quoted in the subjoined table: 



Table XI. — Analysis of commercial fish scrap, quoted from Johnson. 



Kind of fertilizer. 



Moisture. 



Nitrogen. 



Nitrogen 

 in water- 

 free fish. 



Oil. 





Per cent. 

 10.75 



Per cent. 

 8.52 

 8.21 



7.35 

 7.30 

 9.26 

 8.77 

 7.98 

 8.04 

 8.51 

 8.43 

 7.77 

 8.78 



Per cent. 

 9.54 



Per cent. 



Do 





Dry ground fish scrap: 



Old, 1876 



16.59 

 23.95 



8.81 

 9.59 





New, 1877 









Do 









Do 



19.57 

 9.03 



11.38 



10.74 

 9.76 



11.19 



9.92 

 8.83 

 9.60 

 9.44 

 8.61 

 9.88 





Do 





Do 





Do 





Do 



8.94 



Do 



7.30 









13.66 



8.24 



9.36 



8.12 









4.91 

 3.67 

 11.45 



10.78 

 10.74 

 10.24 



11.32 

 11.15 

 11.56 



2.07 



Do 







4.64 







NEW ANALYSES. 



A small number of samples of fish scrap were taken for the most 

 part in person by the writer during the fall of 1912. No attempt 

 was made to obtain a complete series from all the plants visited. 



1 Atwater, W. O., Conn. Asr. Expt. Sta. Kept., 1876, p. 63. 



2 Conn. Agr. Expt. Sta. Rept., 1877, 41. 



