with impressive pictures of the ointment. Experiments showed that 100 per cent. Starch, chiefly maize 20·0 ” Talc 2·8 ” Gum about 2·0 ” 1·2 ” Formamine 3·5 ” 2·0 ” Talc 2·8 ” Gum about 2·0 ” 1·2 ” Formamine 3·5 ” 2·0 ” Hexamethylene-tetramine or formamine,