74 



BULLETIN OF THE UNITED STATES FISH COMMISSION. 



fairly be taken up by scientific and pliilantliropic members of the com- 

 munity; and perhaps many of the general, and especially the angling, 

 public will supi>ly funds for the acquisition of some suitable water or 

 waters for experiments in the way of pisciculture, not so much in the 

 hopes of receiving a pecuniary return, at least for the present, as for 

 the purpose of practically testing the possibility of improving our own 

 freshwater fish supi)ly by cultivating the species already in our rivers, 

 ponds, and lakes, or naturalizing new ones. Such an attempt would 

 have the sympathy of a considerable public interested in the subject, 

 and could not fail to elicit valuable information. It is hoped that the 

 remarks here made will not be considered as discouraging to such an 

 inquiry. Even apart from the question of fresh-water fish as contrib- 

 uting to our food supply, their multiplication for the sport of the an- 

 gling fraternity is a matter well worth attention, as the facilities for 

 rational and wholesome recreation are no mean elements towards the 

 well being of a nation, and especially of its poorer classes. 



31.— COniPOSITIOIV OF SOmE OF THF FOOD-FISIIFS. 



By E. T. KENSINOTON, F. C. S. 



£From a book entitled " Composition of foods, waters, minerals, manures, and mis- 

 cellaneous substances, compiled by E. T. Kensington, F. C. S." Loudon, 1877.] 



I. — EoE OF Salmon (p. 24). 



Lecithin 7. 5 



Cholesterin 2. 2 



Fat 4. 5 



Albumen , 10. 3 



Nuclein* . . 48. 7 



Protamine 28. 8 



"AH albuminoid substance rich in phosphorus. 



