Excerpt from The American Journal of Psychology, 1904, Vol. 15<br><br>Psychology and Pathology Literature of Mental Tests Tests of Acuity of Hearing A. Speech Tests of Acuity B. Tests with Mechanical Sounds I. Tests of Acuity with Watch Acoumeter Audiometer and Electrical Devices Forks II. Tests of Tonal Limits Lower Limit Upper Limit C. Appendix to Chapter III.<br><br>About the Publisher<br><br>Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com<br><br>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.