The American Journal of Psychology

I

JUSTUS GAULE, What is Life?

H. C. STEVENS, The Plethysmographic Evidence for the
Tridimensional Theory of Feeling,

G. STANLEY HALL and THEODATE L. SMITH, Reactions
to Light and Darkness,

.

E. B. TITCHENER, A Plea for Summaries and Indexes,
G. S. H., Note on Moon Fancies,

I. MADISON BENTLEY, The Simplicity of Color Tones,
G. STANLEY HALL, Child Study at Clark University,
GUY MONTROse Whipple, A Compressed Air Device for
Acoustic and General Laboratory Work,

.

13

88

92

96

21

84

107

I. MADISON BENTLEY, Professor Calkins on Mental Ar-
rangement,

113

115

II.-LITERATURE,

Communications may be sent to any one of the three editors.

Contributors, especially those sending reviews, are requested to follow the method of citation employed by this JOURNAL; in every case the year, volume and page should be given.

THE AMERICAN JOURNAL OF PSYCHOLOGY is published quarterly. The subscription price is $5.00 a year. Single numbers $1.50. Remittances and business communications should be addressed to Louis N. WILSON, Clark University, Worcester, Mass.

F. ANGELL, Stanford University; H. BEAUNIS, Universities of Nancy
and Paris; I. M. BENTLEY, Cornell University; A. F. CHAM-
BERLAIN, Clark University; C. F. HODGE, Clark Uni-
versity; A. KIRSCHMANN, University of Toronto;

O. KUELPE, University of Würzburg; W. B.
PILLSBURY, University of Michigan; A.

D. Waller, University of London;

M. F. WASHBURN, Vassar

College.

VOL. XIV.

CLARK UNIVERSITY, WORCESTER, MASS.

LOUIS N. WILSON, Publisher.

1903.

LELANDU

COPYRIGHT, 1903, BY G. STANLEY HALL.

OMIAEBZILA

TIRKYKA