Remove end crusts from bread, cut loaf in one-half inch slices, spread each slice generously with butter; arrange in buttered pudding-dish, buttered side down. Beat eggs slightly, add sugar, salt, and milk; strain, and pour over bread; let stand thirty minutes. Bake one hour in slow oven, covering the first half-hour of baking. The top of pudding should be well browned. Serve with Hard or Creamy Sauce. Three-fourths cup raisins, parboiled in boiling water to cover and seeded, may be sprinkled between layers of bread.