Deafness, Tinnitus, and Vertigo

Any work by this distinguished otologist deserves the attention of all who are interested in the field of deafness and related subjects. There is much which is factual in this book and a great deal which is theoretic. Thus the chapters on anatomy and physiology are not of a controversial nature and can be read with benefit to all. The essence of the author's theme is that in most cases of deafness, tinnitus and vertigo there is altered chemical composition of the blood due to a dysfunction of the enzymatic interplay. This is not presented as an entity justifying itself but as a key to purposeful therapy. According to the author there are three types of deafness; congenital, nonprogressive and progressive deafness. He is primarily concerned with the latter type, and as regards progression of deafness makes this statement: "The prime agent in the production of the phenomenon of progressive