This section of the book is from the "Household Companion: The Model CookBook" book
Of shell-fish the oyster is the general favorite among epicures and everyday people alike. It is more wholesome eaten raw than when cooked, the flesh being coagulated and hardened by cooking. The least digestible part is the firm hard section of muscle, by which the animal was fastened to the shell. Persons of weak digestion should reject this portion. The clam, while it may be made into various palatable dishes, is much tougher and less digestible than the oyster. As regards the crab and lobster, they are favorite epicurean dishes, but not from their digestibility, since they are unfitted for weak stomachs. Many persons of fairly good powers of digestion find the crab or lobster a heavy load upon the stomach.