Scotch Scones

Sift 1-1/2 pints of flour; add a pinch of salt, 1 teaspoonful of soda mixed with 1 pint of sour milk. Mix to a soft dough. Lay on a well-floured baking-board and roll 1 inch thick. Cut with a round cake-cutter and bake on a hot greased griddle until brown on both sides. Serve hot with butter.