Beat the eggs very light, add sugar gradually, and continue beating; add water, flour, baking powder, and salt. Pour into a greased, paper-lined dripping pan and bake in a moderate oven about fifteen minutes. The cake should be about half an inch thick when baked. Trim off the edges, spread with jam or jelly, and roll firmly; wrap in a paper napkin to keep in shape. For Charlotte Russe cut cake into pieces to fit paper cases, and fill with Charlotte Russe Mixture.