Hygiene of the Voice: Its Physiology and Anatomy is a book written by Durant and Ghislani in 1870. The book provides a comprehensive guide to the physiology and anatomy of the human voice, with a focus on maintaining good hygiene for optimal vocal health. It covers topics such as the structure of the vocal cords, the role of the larynx in speech production, and the importance of proper breathing techniques. The authors also discuss common vocal disorders...