PREFACE.

CONTENTS.

SCIENTIFIC CULTURE. An Address delivered July 7, 1875, at the

THE NOBILITY OF KNOWLEDGE. An Address delivered before the Free

THE ELEMENTARY TEACHING OF PHYSICAL SCIENCE. An Address to the

THE RADIOMETER: A FRESH EVIDENCE OF A MOLECULAR UNIVERSE. A

MEMOIR OF THOMAS GRAHAM. Reprinted from the "Proceedings of the

MEMOIR OF WILLIAM HALLOWES MILLER. Reprinted from the

WILLIAM BARTON ROGERS.

JEAN-BAPTISTE-ANDRE DUMAS. [K]

THE GREEK QUESTION. [N]

FURTHER REMARKS ON THE GREEK QUESTION.

SCIENTIFIC CULTURE; ITS SPIRIT, ITS AIM, AND ITS METHODS. [P]

"NOBLESSE OBLIGE."

THE SPIRITUAL LIFE. [Q]

SCIENTIFIC LECTURES AND ESSAYS.

WORKS ON ASTRONOMY.

WORKS ON GEOLOGY, Etc.

AND OTHER ESSAYS.

BY
JOSIAH PARSONS COOKE, LL. D.,
PROFESSOR OF CHEMISTRY AND MINERALOGY, IN HARVARD COLLEGE.

SECOND EDITION; WITH ADDITIONS.

NEW YORK:
D. APPLETON AND COMPANY,
1, 3, and 5 BOND STREET.
1885.

Copyright, 1881, 1885,
By JOSIAH PARSONS COOKE.

TO
MY ASSOCIATES
IN
THE CHEMICAL LABORATORY
OF
HARVARD COLLEGE
THIS VOLUME
IS
AFFECTIONATELY DEDICATED.