the ingredients for twelve powders weighed singly had weights varying from 3·2 to 3·8 grains. Aloin 6·9 ” Glycerine 5 ” Powdered liquorice 40 ” Gentian root 10 ” ” ” senna (1-7) 2½ fluid drams. Glycerine 2 ” ” Starch 0·34 ” ” ” ” ” Soft paraffin 31·0 ” Soft paraffin 35·4 per cent. of ash, about half a grain of