RIVERSIDE TEXTBOOKS

IN EDUCATION

EDITED BY ELLWOOD P. CUBBERLEY

PROFESSOR OF EDUCATION

LELAND STANFORD JUNIOR UNIVERSITY

DIVISION OF SECONDARY EDUCATION
UNDER THE EDITORIAL DIRECTION
OF ALEXANDER INGLIS

ASSISTANT PROFESSOR OF EDUCATION
HARVARD UNIVERSITY

AN INTRODUCTION TO
. CHILD PSYCHOLOGY.

BY

CHARLES W. WADDLE, Ph.D.

SUPERVISOR OF PRACTICE TEACHING AND FORMERLY
HEAD OF THE DEPARTMENT OF PSYCHOLOGY

AND EDUCATION IN THE LOS ANGELES
STATE NORMAL SCHOOL