Lemon Bread
["3 1/4 c. flour", "2 tsp. baking powder", "1 tsp. salt", "4 eggs, separated", "1 c. butter or margarine, softened", "2 1/2 c. sugar", "1 1/4 c. milk", "1 c. finely chopped nuts", "2 Tbsp. grated lemon rind", "1/2 c. fresh lemon juice"]
["Preheat oven to 350\u00b0.", "Grease and lightly flour 3 (8 1/2 x 4 1/2 x 2 1/2-inch) loaf pans."]
["flour", "baking powder", "salt", "eggs", "butter", "sugar", "milk", "nuts", "lemon rind", "lemon juice"]