Walnut Torte

Six eggs, quarter pound shelled walnuts, six lady fingers, two tablespoons flour, one teaspoon baking powder, one coffee cup sugar. Juice and rind of half lemon.
Beat yolks of eggs; add sugar gradually. Mix baking powder and flour; grind lady fingers and nuts and put in stiffly beaten whites of eggs last. Bake in moderate oven forty-five to fifty minutes; spread with plain white icing or serve with whipped cream.