Reduce half a pint of good veloute (No. 152) with half a glassful of white wine, season with one pinch of salt, half a pinch of pepper, and a very little cayenne pepper, adding three tablespoonfuls of grated Parmesan- cheese. Take three-quarters of a pound of shelled crabs, put them in the saucepan, and boil them for ten minutes; then lift from the fire and let cool. Prepare six squares of toasted bread, and with a knife spread some of the mixture smoothly over each slice, sprinkle well with grated cheese, and moisten slightly with clarified butter; place them on a baking-dish; bake in a very hot oven for three minutes, and serve on a hot dish with a folded napkin, garnished with parsley-greens.