This book is a comprehensive study on the treatment of children's voices and how it affects their development. It covers various aspects of children's vocal development, including physiological, psychological, and pedagogical approaches to voice training. Emil Behnke provides an insightful analysis of the techniques and methods that work best in developing children's voices. This is a must-read for any vocal teacher, pediatrician, or anyone who works with children's voices. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.