Excerpt from Practical Treatise on the Diseases of the Ear: Including the Anatomy of the Organ A history should be kept for the proper study of cases - Hearing tests. - Ordinary con versation. - The tuning-fork - The tick of a watch. Acoumeter. - Record of the hearing distance. - Prout's method. Discrepancy between the power of hearing a watch and conver sation. - How deaf-mutes feel the vibrations of the tuning-fork Malingering. - Aural specula. - The Otoscope. - Examination of the nose.-naso-pharynx. - Eustachian tubes - The nose the start ing point of many of the common lesions of the can - Conditions of the upper respiratory tract which produce aural disease. Anterior rhinoscopy. - Posterior rhinoscopy. - The examination of the naso pharynx. - The Eustachian tubes. - Inspection. -com pressed air. - Aural bougie and probe. - Valsalva' 3 method. - Po litzer' 8 method. - Method of introducing the Eustachian catheter. - Inflation by the double air-bag. - Achscharumow's method. Emphysema of the pharyngeal tissue, caused by instruments. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.