Classic Irish Corned Beef Stew

Instructions:
Chop corned beef and salt pork fine
2/3 beef And 1/3 pork, making the proper proportions.
Put them in a stew pan with 6 whole peppercorns,
2 blades of mace, 1 teaspoonful of celery seeds
and what sweet herbs are liked.
Cover with water and stew very gently for an hour;
then add 1 chopped potato, 1/2 turnip,
1/2 carrot also chopped, 1 sliced onion
and 2 tablespoonfuls of vinegar to flavor.
Thicken with flour, or boil 1/2 cupful of rice,
putting it in at the same time with the vegetables.
Put toasted bread cut in dice, or freshly baked biscuits,
broken small, in the tureen; pour the stew over this and serve hot.