Chopped Forcemeat for Country Sausages with Sage

Have three pounds of corn-fed lean pork, free of all its sinews, and one pound of fat pork; cut them both into inch squares, then chop them up finely together, and season with an ounce of salt and a teaspoonful of ground black pepper, a quarter of an ounce of powdered sage, the sixth part of a teaspoonful of cayenne pepper, a bit of powdered saltpetre and a gill of water. Work well together so as to mix thoroughly.