Full of detailed illustrations, digrams and score. "WHEN a youth it was my lot to be surrounded by examples of faulty vocalism, such as prevailed in a country town, and to be subjected to the errors then in vogue, having at the same time small opportunity for training in the application of principles, even as then imperfectly taught. At middle life I had given up all attempt at singing and had difficulty in speaking so as to be heard at any considerable distance or for any considerable length of time. Professional obligations to my patients, however, compelled me later to take up the subject of vocal physiology. This I did, guided by the ideas current on the subject."