Chapter 40

*** Dr. Phipson's work presents, amidst much which is of interest to the Scientist and the General Reader alike, a short _résumé_ of his discovery of the origin of Atmospheric Oxygen, the existence of which he attributes wholly to the action of Solar Radiation upon vegetable life. The book will be found replete with much that is new, curious, and interesting, both in connection with Weather Lore, and with Scientific Meteorology.--_Publisher's Note._

"The book should prove of interest to general readers, as well as to meteorologists and other students of science."--_Nature._

* * * * *

By GRENVILLE A.J. COLE, M.R.I.A., F.G.S.,

Professor of Geology in the Royal College of Science for Ireland, and Examiner in the University of London.

_See also the two following pages (54, 55), and page 85._

* * * * *

~AIDS IN PRACTICAL GEOLOGY:~

_WITH A SECTION ON PALÆONTOLOGY._

BY PROFESSOR GRENVILLE COLE, M.R.I.A., F.G.S.

FOURTH EDITION, Thoroughly Revised. With Frontispiece and Illustrations. Cloth, 10s. 6d.

GENERAL CONTENTS.--