Combine tapioca, salt, molasses, and water. Cook over hot water until tapioca is clear. Stir frequently. Place apples in well-oiled baking dish. Add raisins. Sprinkle with sugar and spices. Dot with butter. Cover with tapioca mixture. Bake in moderate oven (350 F) 1 hour, or until apples are tender. Serve hot with lemon sauce.