In the preparation of this text we are indebted to writers, past and present, who have discussed the subject of speech correction and its allied sciences. We are also indebted to our professional colleagues and friends who have aided us with their valued counsel and criticism in particular, to Professors Archibald L. Bouton, James A. Lough, Earl B. Babcock, G. Rowland Collins; Mr. Charles A. Dwyer; A. A. Brill, M.D., E. Wallace Mac Adam, MD. And A. J. Hirsch, d.d.s.

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.