This book, consisting of eighty-seven pages, many of which are taken up with diagrams and illustrations of the equipment used, is brief and concise. Its brevity is made possible by the absence of unnecessary language. The first twenty-four pages are taken up in an explanation, by simple experiments, of the physics and chemistry of zinc ionization, which is the basis of the author's treatment. The next forty pages deal with the technic of treatment, which includes methods of examination and diagnosis. The remaining portion gives tables of statistics on results of treatment and hints on the organization of the clinic.
He divides his cases of chronic otorrhea into four groups: (1) accessible sepsis, e.g., tympanic sepsis; (2) accessible sepsis with a second factor in the ear, e.g., polypus; (3) accessible sepsis with inflammation in an adjacent organ, e.g., rhinitis, and (4) inaccessible sepsis: (a) accessible with difficulty, e.g., cell in