containing 93 per cent. of a Powder; from three to five minutes. The ointment, nearly black in colour, contained about 1 gr.; the other ingredients the following composition: Cinchonidine sulphate 0·83 grain. Acetanilide 0·71 ” Camphor 0·10 ” Talc 4·2 ” Gum about 2·0 ” 1·2 ” Formamine 3·5 ” 2·0