Page:The Boston cooking-school cook book (1910).djvu/193

 Caviare is the salted roe of the sturgeon.

Herring are usually smoked, or smoked and salted, and, being very cheap, are a most economical food.

SHELLFISH

I. Bivalve Mollusks

Oysters are mollusks, having two shells. The shells are on the right and left side of the oyster, and are called right and left valves. The one upon which the oyster rests grows faster, becomes deeper, and is known as the left valve. The valves are fastened by a ligament, which, on account of its elasticity, admits of opening and closing of the shells. The oyster contains a tough muscle, by which it is attached to the shell; the body is made up largely of the liver (which contains glycogen, animal starch), and is partially surrounded by fluted layers, which are the gills. Natural oyster beds (or banks) are found in shallow salt water having stony bottom, along the entire Atlantic Coast. The oyster industry of the world is chiefly in the United States and France, and on account of its increase many artificial beds have been prepared for oyster culture. Oysters are five years old before suitable for eating. Blue Points, which are small, plump oysters, take their name from Blue Point, Long Island, from which place they originally came. Their popularity grew so rapidly that the supply became inadequate for the demand, and any small, plump oysters were soon sold for Blue Points. During the oyster season they form the first course of a dinner, served raw on the half-shell. In our markets, selected oysters (which are extremely large and used for broiling) Providence River, and Norfolk oysters are familiarly known, and, taken out of the shells, are sold by the quart. Farther south, they are sold by count.

Oysters are obtainable all the year, but are in season from September to May. During the summer mouths they are flabby and of poor flavor, although when fresh they are perfectly wholesome. Mussels, eaten in England and other parts of Europe, are similar to oysters, though of inferior