A Treatise on the Physiology and Diseases of the Ear ; Containing A Comparitive View of Its Structure and Functions, and of Its Various Diseases, Arranged According to the Anatomy of the Organ, Or as They Affect the External, The Intermediate, and the Internal Ear. Third Edition. With Considerable Additions and Improvements. By John Harrison Curtis, Esq., Aurist to His Majesty, and to Their Royal Highnesses the Duke and Duchess of Gloucester ; Surgeon to the Royal Dispensary for Diseases of the Ear ; Lecturer on the Anatomy, Physiology, and Pathology of the Ear ; and Fellow of the Medical Society of London, &c. &c