This glycozone results from the reaction which takes place when glycerin is exposed to the action of ozone, under pressure—one volume of glycerin with fifteen volumes of ozone produces glycozone. By submitting the bacillus anthracis, pyocyaneous, prodigiosus, and megaterium to the action of glycozone, they were almost immediately destroyed. I have observed that the action of glycozone upon the typhoid fever bacillus, and some other germs, is much slower than the influence of peroxide of hydrogen. In dressing of wounds, ulcers, etc., the antiseptic influence of glycozone is rather slow if compared with that of peroxide of hydrogen, with which it may, however, be mixed at the time of using. It has been demonstrated in Pasteur's laboratory that glycerin has no appreciable antiseptic influence upon the virus of hydrophobia; therefore, I mixed the virus of hydrophobia with glycerin, and at the expiration of several weeks all the animals which I inoculated with this mixture died with the symptoms of hydrophobia. On the contrary, when glycerin has been combined with ozone to form glycozone, the compound destroys the hydrophobic virus almost instantaneously. Two months ago, a rabbit was inoculated with the hydrophobic virus, which had been submitted to the action of this new compound, and the animal is still alive. I believe that the practitioner will meet with very satisfactory results with the use of peroxide of hydrogen for the following reasons: 1. This chemical seems to have no injurious effect upon animal cells. 2. It has a very energetic destructive action upon vegetable cells—microbes. 3. It has no toxic properties; five cubic centimetres injected beneath the skin of a guinea-pig do not produce any serious result, and it is also harmless when given by the mouth. As an immediate conclusion resulting from my experiments, my opinion is, that peroxide of hydrogen should be used in the treatment of diseases caused by germs, if the microbian element is directly accessible; and it is particularly useful in the treatment of infectious diseases of the throat and mouth. Books Received. THE PHYSICIAN'S VISITING LIST (_Lindsay & Blakiston's_) FOR 1891. Fortieth year of its publication. P. Blakiston, Son & Co., 1012 Walnut street, Philadelphia, Pa. DESCRIPTIVE ANATOMY OF THE HUMAN TEETH: By G. V. BLACK, M.D., D.D.S. Published by the Wilmington Dental Mfg. Company, 1413 Filbert street, Philadelphia. "THE PHYSICIAN'S ALL-REQUISITE ACCOUNT BOOK;" being a ledger and account book for physicians' use, meeting all the requirements of the law and courts. Published by F. A. Davis, Medical Publisher and Bookseller, 1231 Filbert street, Philadelphia, Pa. Style No. 1, 900 accounts, price $5.00, net; style No. 2, 1,800 accounts, $8.00, net.