Page:Foods and their adulteration; origin, manufacture, and composition of food products; description of common adulterations, food standards, and national food laws and regulations (IA foodstheiradulte02wile).pdf/160

 These data show that more than half of the weight in the water-free state is composed of salt. The codfish is also put up as boned fish in which nothing but the flesh is found, as desiccated cod, as shredded codfish and in various other forms.

Average Composition of Codfish Balls.—

Water,              65.43 percent Solids,             34.57   " Nitrogen,             1.05   " Phosphoric acid,      .25   " Sulfur,                .10   " Fat,                 7.84   " Ash,                  4.05   " Protein,             6.58   "

The difference between the composition of the fish balls and the average composition of fish is clearly brought out by the data recorded. In the average composition of fish the sum of the fat, ash, and protein is greater than the solids obtained by difference by 0.36 percent. In the codfish balls the sum of the ingredients mentioned is less than the solids by difference by 16.10 per cent. This is due to the added potato, salt, etc.

Average Composition of Shredded Codfish.—

Water,              46.52 percent Ash (chiefly salt), 22.81   " Fat,                   .33   " Protein,            30.85   "

Eels.—The common eel is a fish which is extremely long in proportion to its size and gives the general appearance, to the uninitiated, of a snake. The resemblance of the eel to a snake in shape is probably one of the reasons why it is not more highly valued as a food. The eels, perhaps, are not to be considered as true fish. The common eel (Anguilla chrysypa) is widely distributed throughout most parts of the United States, especially the eastern part. It extends southward as far as the West Indies, and is found in more or less abundance on the Gulf coast. Although a salt-water fish, it differs from most other eels in its penchant for ascending fresh-water streams. It often goes to the very headwaters, especially in the rivers of the Atlantic coast and Mississippi valley. Eels are often found in lakes which seem to have had no communication with the sea, which shows that they are able to surmount barriers which seem impossible to cross. Jordan and Evermann claim that the eel is really a fresh-water fish and that its real home is in the fresh-water rivers and lakes, and that it runs down to salt water only at spawning time, thus showing a quality or characteristic exactly opposite to that of the salmon and shad, which are true salt-water fish and come into fresh waters for spawning. Eels, like the carp, are more or less scavengers, feeding upon all manner of refuse, especially dead fish. They are very destructive of