University of Iowa studies in psychology. Volume 3 / edited by George T.W. Patrick.

Iowa City, Iowa : The University, [1902], ©1902.

144 pages : illustrations ; 24 cm

Bulletin of the State University of Iowa. New series, no. 49 (1902)

At head of cover title: Bulletin of the State University of Iowa. New series no. 49, May 1902.

Copy 1 Supplier/Donor: Poly E. London Note: Formerly in the Charles Myers Library at the N.I.I.P

Includes bibliographic footnotes

A method of measuring mental work: the psychergograph / C. E. Seashore.--A voice tonoscope / C. E. Seashore.--An illusion of length / C. E. Seashore and Mabel Clare Williams.--Normal illusions in representative geomentrical forms / Mabel Clare Williams.--The New Psychological Laboratory of the University of Iowa / George T. W. Patrick