A careful study of Circular No. 12 of the Internal Revenue Department is suggestive of some possible checks to quackery under the present revenue laws. The object of the law is to tax all special proprietary, trademark, or patented medicines, druggists' popular nostrums, all "non-secret" remedies, all advertised cures, and all physicians' advertised prescriptions or medicines, the demand for which is created by post-office solicitation, as well as perfumery, etc. According to the attorney-general's opinion: "Any medicinal article will be held to be advertised on the package or otherwise as having any special claim to merit, or to any peculiar advantage in the mode of preparation, quality, use or effect, when any description of it, either on the package or otherwise, includes any statement to the effect that it has a special or peculiar merit or value over other like articles or articles of the same class; or when it