Measure and sift flour, ginger, soda, cinnamon and salt. Cream shortening and sugar, add egg. Then add molasses. Sift in dry ingredients into creamed mixture. Blend well. Form teaspoon full in ball in hands and roll lightly in sugar, cover entire ball. Place on un-greased cookie sheet 2 inches apart. Bake in moderate oven 350 degrees for 12 to 15 minutes or until tops are slightly rounded and crack or light brown, remove from cookie sheet at once. Cool and store in airtight container. Makes 4 dozen.