Sheldon & Company's Text-Books.

PROFESSOR OLNEY'S

NEW MATHEMATICAL SERIES.

The success of Prof. Olney's series has been most wonderful. With all their admitted excellencies, both the Author and Publishers have felt that it was possible to retain their many attractive features and yet adapt the books more perfectly to the special school-room wants.

To accomplish this most desirable end, Professor Olney has been accumulating very valuable suggestions. He has also, for several years, had associated with him in the preparation of this new series, some of the best practical teachers in the country.

The design is to present to the educational public the best and most teachable series of Mathematics ever published. The work is now so far advanced that the Publishers are able to make the above pleasing announcement, which they feel will be of great interest to all who are engaged in teaching.

THE NEW SERIES EMBRACES:

I.

metic.

Olney's First Lessons in Arithmetic. JUST PUBLISHED.

II.

Olney's Practical Arithmetic.

This book has been published but a short time, but it has already had the most wonderful success.

They are models of beauty and cheapness.

For schools of a high grade, Professor Olney has prepared

III.

The Science of Arithmetic.

IV.

The First Principles of Algebra.

AN INTRODUCTION TO THE AUTHOR'S COMPLETE AND
UNIVERSITY ALGEBRAS.

V.

Olney's Complete Algebra. NEW EDITION, IN LARGE TYPE. This book is now entirely re-electrotyped in larger and more attractive type. The explanatory matter is greatly lessened. The attractive features of this book, which have made it the most popular Algebra ever published in this country, are all retained.

PHILOSOPHY:

INCLUDING THE

INTELLECT, SENSIBILITIES,

AND WILL.

BY

JOSEPH HAVEN, D.D., LL.D.,

LATE PROFESSOR OF SYSTEMATIC THEOLOGY IN THE THEOLOGICAL SEMINARY,
CHICAGO, ILL.; AND LATE PROFESSOR OF INTELLECTUAL AND
MORAL PHILOSOPHY IN AMHERST COLLEGE.

IMPROVED EDITION, NEWLY ELECTROTYPED,

SHELDON & COMPANY,

NEW YORK & CHICAGO.

1886.

Electrotyped by SMITH & MCDOUGAL, 82 Beckman St., New York.

PUBLISHERS' NOTE.

MANY years since, the late Dr. Haven prepared tnis

work on Mental Philosophy. As he states in his Preface, it was the out-growth of his class-room work.

It soon became the most popular text-book on this subject, and it has retained that place up to the present time.

Dr. Haven treats this most difficult subject in a very simple, yet thorough manner. His style is clear and perspicuous.

So great has been the demand for this book, that the stereotyped plates have been entirely worn out, in printing edition after edition. This is a thing which very rarely happens with books of this class.

We have therefore had a new edition prepared, and electrotyped it entirely anew. We believe that in its new and attractive dress, it will have a sale even greater than before.