Excerpt from The American Journal of Psychology, 1916, Vol. 27 The tendency of modern text-books of psychology has been to abandon the concept of duration as a derived character of mental processes or as a relation of psychical elements, and to adopt in its place the view that duration is an attribute of sensation co-ordinate with quality and intensity. The basis for this Change has been in the main logical and theoretical; but the question must arise whether we can obtain any intro spective evidence for the ultimate character of duration. There are, of course, two possible sources of such evidence: incidental references to the matter in the experimental litera ture, particularly that of the 'time-sense and introspective data obtained by further investigation which has, as the older experiments had not, the question of the ultimate character of duration as its goal. 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.