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MEMORY

A CONTRIBUTION TO EXPERIMENTAL
PSYCHOLOGY

BY

HERMANN EBBINGHAUS

PRIVAT DOCENT IN PHILOSOPHY AT THE UNIVERSITY OF BERLIN

(1885)

‘De subjecto vetustissimo
novissimam promovemus scientiam’’

TRANSLATED BY

HENRY A. RUGER, Ph.D.

ASSISTANT PROFESSOR OF EDUCATIONAL PSYCHOLOGY,
TEACHERS
COLLEGE, COLUMBIA UNIVERSITY

AND

CLARA E. BUSSENIUS

 

PUBLISHED BY

Teachers College, Columbia University

NEW YORK CITY

1913}}