Excerpt from Psychological Review, Vol. 3<br><br>In a paper which I read two years ago before this Associa tion, I endeavored to make clear the nature of the work done by the psychologist, and to set forth the assumptions upon which he must proceed and the method he must employ. I maintained that he must assume the existence of an external physical world, and the existence of certain copies or representatives of it inti mately related to particular bodily organisms. These transcripts of the external world, supplemented by certain elements not supposed to have their prototypes without (feelings of pleasure and pain, etc.) are called minds. I stated that it was the task of the psychologist, with the aid of introspection, observation and experiment, to obtain a knowledge of such minds, and to reduce their phenomena to laws. I held further that, whether we regard mental phenomena as parallel with nervous processes, or as belonging to the same series with them and forming a part of the one Chain, that does not affect the fundamental assump tion of the psychologist, the assumption of an external world and of minds which mirror it, nor does it affect his general method of procedure, the employment of introspection, observa tion and experiment.<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.