This, the ninth installment in loose-leaf form perforated for insertion in Volume IV, "Otosclerosis," covers the literature for the years 1956-1957 and is published by the Central Bureau of Research of the American Otological Society, Inc. As in previous years, it also contains a few abstracts not obtainable in time for the prior index. All prior volumes of "Otosclerosis" are out of print.
Both original articles and abstracts in the various medical publications have been utilized in preparing this installment.
Only the opinions of the authors are given, and no endorsement or condemnation should be inferred because of the selection of the articles abstracted. So many papers on the fenestration and stapes mobilization operations have been published and have become so repetitive in character that we have abstracted but a few.
A reprint of this installment, with index of authors according to subjects and perforated for loose-leaf binding in Volume