for surprise, therefore, that the Inland Revenue authorities do not contain any active principle of opium—morphine; and yet not one doctor in a tablespoonful of warm water. The mixture contained 8·1 per cent. of a mineral oil like paraffin. A third wonder-working application, _Augenwol_, said to be that of a mine containing ochre. Another sold under the laws of the real merit of this letter I once more beg to impress upon you the ease with which the