Harvard Psychological Studies, Volume 1 Containing Sixteen Experimental Investigations from the Harvard Psychological Laboratory.   By: Various

EDITED BY

J. McKEEN CATTELL and J. MARK BALDWIN COLUMBIA UNIVERSITY PRINCETON UNIVERSITY

WITH THE CO OPERATION OF

ALFRED BINET, ÉCOLE DES HAUTES ÉTUDES, PARIS; JOHN DEWEY, H.H. DONALDSON, UNIVERSITY OF CHICAGO; G.S. FULLERTON, UNIVERSITY OF PENNSYLVANIA; G.H. HOWISON, UNIVERSITY OF CALIFORNIA; JOSEPH JASTROW, UNIVERSITY OF WISCONSIN; G.T. LADD, YALE UNIVERSITY; HUGO MÜNSTERBERG, HARVARD UNIVERSITY; M. ALLEN STARR, COLLEGE OF PHYSICIANS AND SURGEONS, NEW YORK; CARL STUMPF, UNIVERSITY, BERLIN; JAMES SULLY, UNIVERSITY COLLEGE, LONDON.

H.C. WARREN, PRINCETON UNIVERSITY, Associate Editor and Business Manager .

Series of Monograph Supplements, Vol. IV., No. 1 (Whole No. 17), January, 1903.

HARVARD PSYCHOLOGICAL STUDIES,

Volume I CONTAINING

Sixteen Experimental Investigations from the Harvard Psychological Laboratory.

EDITED BY HUGO MÜNSTERBERG.

PUBLISHED BI MONTHLY BY THE MACMILLAN COMPANY, 41 N. QUEEN ST., LANCASTER, PA. 66 FIFTH AVENUE, NEW YORK.

AGENT: G.E. STECHERT, LONDON (2 Star Yard, Cary St., W.C.) Leipzig (Hospital St., 10); PARIS (76 rue de Rennes).

PRESS OF THE NEW ERA PRINTING COMPANY LANCASTER, PA.

PREFACE.

The appearance of the HARVARD PSYCHOLOGICAL STUDIES does not indicate an internal change in the work of the Harvard Psychological Laboratory. But while up to this time the results of our investigations have been scattered in various places, and have often remained unpublished through lack of space, henceforth, we hope to have in these STUDIES the opportunity to publish the researches of the Harvard Laboratory more fully and in one place. Only contributions from members of the Harvard Psychological Laboratory will be printed in these volumes, which will appear at irregular intervals, and the contributions will represent only our experimental work; non experimental papers will form an exception, as with the present volume, wherein only the last one of the sixteen papers belongs to theoretical psychology.

This first volume does not give account of all sides of our laboratory work. An essential part of the investigations every year has been the study of the active processes, such as attention, apperception, and volition. During the last year several papers from these fields have been completed, but we were unable to include them in this volume on account of the space limits; they are kept back for the second volume, in which accordingly the essays on the active functions will prevail, as those on perception, memory, and feeling prevail in this volume. It is thus clear that we aim to extend our experimental work over the whole field of psychology and to avoid one sideness. Nevertheless there is no absence of unity in our work; it is not scattered work as might appear at a first glance; for while the choice of subjects is always made with relation to the special interests of the students, there is after all one central interest which unifies the work and has influenced the development of the whole laboratory during the years of my direction.