Yacht Oyster Soup

A quart of milk, one of oysters, a head of celery, a small onion, half a cupful of butter, half a cupful of powdered cracker, one teaspoonful of Worcestershire sauce, a speck of cayenne and salt and pepper to taste. Chop onion and celery fine. Put on to boil with milk for twenty minutes. Then strain, and add the butter, cracker, oyster liquor, (which has been boiled and skimmed), and finally the seasoning and oysters. Cook three minutes longer, and serve.