1. The composition is incorrectly declared. B. Iodine is not a newly discovered iodin compound, “Nitrogen Hydrate of Iodine,” but a mixture of iodin and ammonium iodid. B. Oleum Iodine is not a 5 per cent. solution of B. Iodine as suggested by the statement on the label and in the advertising, but a solution of iodin in liquid petrolatum containing about 0.85 per cent. of iodin. 2. Since B. Iodine is a mixture of Iodin and ammonium iodid, its solution in water will have the properties of other solutions of iodin made by the aid of iodid, such as a dilution of tincture of iodin or of compound solution of iodin (Lugol’s solution). Hence, the therapeutic claim that B. Iodine “being of a colloidal nature has the advantage of being more readily absorbed and taken up by all cellular structure, thus getting a perfect cellular medication of Iodine,” is unwarranted. 3. The names “B. Iodine” and “B. Oleum Iodine” are not descriptive of the pharmaceutical mixtures to which they are applied. 4. B. Iodine and B. Oleum Iodine are unessential modifications of established articles. B. Iodine has no advantage over tincture of iodin or compound solution of iodin. (As more convenient of transportation, the Medical Department of the U. S. Army supplies its field hospitals with a mixture of iodin and iodid ready for solution in water, either in tablet form or in powdered form in tubes.) Solutions of iodin in liquid petrolatum may be readily prepared (Reports Council Pharm. and Chem., 1917, p. 88). [Contribution from the A. M. A. Chemical Laboratory] B. IODINE PRODUCTS A. H. Clark, Ph.G., B.S. “B. Iodine” products are marketed by the B. Iodine Chemical Company, Cincinnati, Ohio; John Bohlander, A.M., M.D., is said to be the discoverer. They consist of “B. Iodine,” “B. Oleum Iodine,” and “B. Aqua Iodine.” B. Iodine and B. Oleum Iodine were submitted to the Council. In a circular submitted by the B. Iodine Chemical Company, B. Iodine is said to be “Nitrogen Hydrate of Iodin.” It is claimed that “coming in contact with water, H₂O, a chemical change takes place forming Hydro Oxid of Iodin, the Nitrogen of the Nitrogen Hydrate of Iodin escaping, the balance taking up one of oxygen of the water. Its companion, the H₂, escaping at the same time with the Nitrogen then combining with the remainder of the water to form the solution of Hydrogen Oxid of Iodin; so you can readily see that you really have a pure water of Iodin, nothing but the H, the O and the I.”--(_From the Journal A. M. A., Feb. 1, 1919._) B. IODINE According to the circular, B. Iodine is soluble in alcohol, chloroform, and ether. Also it: