Wipe the fish carefully and if fresh, sprinkle thoroughly with salt. Wrap it in a piece of cheesecloth to hold the fish together and to prevent the scum from clinging to the fish, and place it in a kettle of boiling water, adding a teaspoon of salt and a tablespoon of vinegar to every two quarts of water, also a slice of onion, a bay leaf and a sprig of parsley. Cook slowly, following the time table in the front of the book ; lift and drain carefully; open the cloth and turn the fish upon the serving platter, garnishing with parsley and slices of lemon. The fish is done when the flesh is firm and separates easily from the bone.
Wash and dry the fish, rubbing inside and out with salt; stuff with forcemeat or bread stuffing and sew. Cut gashes two inches apart on both sides, alternating, and into each slip a narrow strip of salt fat pork. Sprinkle with salt and pepper and place in a hot oven without water. As soon as it begins to brown add hot water and butter and baste every ten minutes. Bake until done, allowing an hour or more for a large fish, twenty or thirty minutes for a small one. Remove to a hot platter; draw out the strings; wipe off all water or fat and remove pork; garnish with slices of lemon well covered with chopped parsley and serve with Hollandaise sauce.
For broiling large fish should be split down the back and head and tail removed; salmon and halibut should be cut into one-inch slices, and smelts and other small fish left whole. Wipe the fish as dry as possible; sprinkle with salt and pepper and if the fish is dry and white brush the flesh side well with olive oil or butter. Put in a well-greased broiler, placing the thickest parts of the fish toward the middle or back of the broiler. Hold over a hot fire until the flesh side is nicely browned; then cook the skin side just long enough to make the skin crisp. Small fish require from ten to fifteen minutes, large fish from fifteen to twenty-five. To remove from the broiler loosen one side first, then the other, and lift carefully with a cake turner. Place on a platter; spread with butter and stand in the oven for a few minutes. Garnish with lemon and serve with Maitre d'Hotel sauce.
Place the fish in a frying basket and fry in hot fat, preferably olive oil. Be sure that the fat is hot; test it by lowering a small piece of bread; if it browns in thirty seconds the fat is sufficiently hot. Put only a few pieces of fish in the basket at a time and remove them as soon as they are brown. Garnish with parsley and serve with Tartare sauce.
Shad roe may be baked, broiled or fried. To broil, wipe dry; sprinkle with pepper and salt and cook five minutes on each side. Butter well and stand in the oven for a few minutes; then serve garnished with parsley and lemon. To fry, proceed as with fish, but cook the roe for ten minutes first in boiling water.