Preheat oven to 350F. Blend flour, salt and baking powder. Cream butter, beat in sugar and eggs. Add dry ingredients alternately to creamed mixture with milk. Fold in lemon rind and nuts. Spoon batter into greased 8"x4" loaf pan. Bake in 350F oven for 55-60 minutes or till done. Cool 5 minutes in pan then combine sugar and lemon juice for glaze and spoon over warm loaf. Remove loaf from pan when cool.