Chapter II: Part II

THE DEVELOPMENT OF THE INTELLECT

_OBSERVATIONS CONCERNING THE MENTAL DEVELOPMENT OF THE HUMAN BEING IN THE FIRST YEARS OF LIFE_

BY W. PREYER PROFESSOR OF PHYSIOLOGY IN JENA

TRANSLATED FROM THE ORIGINAL GERMAN BY H. W. BROWN TEACHER IN THE STATE NORMAL SCHOOL AT WORCESTER, MASS.

NEW YORK D. APPLETON AND COMPANY 1895

COPYRIGHT, 1889, BY D. APPLETON AND COMPANY.

EDITOR'S PREFACE.

This second volume contains the further investigations of Professor Preyer on the mind of the child. The former volume contained the first and second portions, devoted respectively to the development of the senses and of the will. The present volume contains the third part, treating of the development of the intellect; and three appendixes are added containing supplementary matter.

Professor Preyer considers that the development of the power of using language is the most prominent index to the unfolding of the intellect. He differs with Professor Max Mueller, however, on the question whether the operation of thinking can be carried on without the use of words (see the recent elaborate work of the latter on "The Science of Thought").

At my suggestion, the painstaking translator of this book has prepared a full conspectus, showing the results of Professor Preyer's careful observations in a chronological order, arranged by months. This considerable labor will render the book more practical, inasmuch as it will enable each reader to see at a glance the items of development of the child in the several departments brought together in epochs. This makes it possible to institute comparative observations under the guidance of Professor Preyer's method. I think that I do not exaggerate the value of this conspectus when I say that it doubles the value of the work to the reader.

WILLIAM T. HARRIS. CONCORD, MASS., _November, 1888_.

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