by a burning sensation in the throat, and a sense of heat in the stomach, which cease rapidly when the use of the medicine is suspended for a day or two. The external use of this iodide, three grains to an ounce of olive oil, aids in the removal of the nocturnal syphilitic pains of the muscles and joints. M. Gamberini finds the iodide of ammonium preferable to that of potassium or sodium : -1. Because, while it produces the same therapeutic effect as the other alkaline iodides, it has the

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... age of acting more promptly than they. 2. Because it requires large doses of iodide of potassium or sodium to obtain the results which are procured by a very small dose of iodide of ammonium.-Union Medicate, and Journal de Pharmacie et de Chimie, November, 1859. Poisoning by Arsenic.-Dr. Blondlot has communicated, in a paper to the