Copyright 1916 By
The University of Chicago
All Rights Reserved
Published June 1916
Second Impression May 1918
Third Impression October 1920
Composed and Printed By
The University of Chicago Press
Chicago, Illinois, U.S.A.
In 1903 a volume was published by the University of Chicago Press,entitled Studies in Logical Theory, as a part of the "DecennialPublications" of the University. The volume contained contributions byDrs. Thompson (now Mrs. Woolley), McLennan, Ashley, Gore, Heidel,Stuart, and Moore, in addition to four essays by the present writerwho was also general editor of the volume. The edition of theStudies being recently exhausted, the Director of the Presssuggested that my own essays be reprinted, together with other studiesof mine in the same field. The various contributors to the originalvolume cordially gave assent, and the present volume is the outcome.Chaps. ii-v, inclusive, represent (with editorial revisions, mostlyomissions) the essays taken from the old volume. The first andintroductory chapter has been especially written for the volume. Theother essays are in part reprinted and in part rewritten, withadditions, from various contributions to philosophical periodicals. Ishould like to point out that the essay on "Some Stages of LogicalThought" antedates the essays taken from the volume of Studies,[vi]having been published in 1900; the other essays have been writtensince then. I should also like to point out that the essays in theirpsychological phases are written from the standpoint of what is nowtermed a behavioristic psychology, though some of them antedate theuse of that term as a descriptive epithet.
J. D.
Columbia University
April 3, 1916