Mix all dry ingredients thoroughly. Turn the sour milk into a mixing bowl. Add the dry ingredients; mix well. Turn at once into an oiled bread pan, and bake in the oven from 50 to 60 minutes; or fill one-pound baking powder cans (which have been oiled) two thirds full, and steam at least 4 hours. If the bread is steamed, remove it (after steaming) from the molds and dry in the oven for a few minutes.
School and Home Cooking (1920).