Transcriber Note Emphasis denoted as _Italics_ and =Bold=. Whole and fractional parts of numbers as 123-4/5. THE ROMANCE OF MODERN GEOLOGY [Illustration: Megalosaurus Total length about 25 feet. (Remains found in England, France, South Africa, and India.)] THE ROMANCE OF MODERN GEOLOGY DESCRIBING IN SIMPLE BUT EXACT LANGUAGE THE MAKING OF THE EARTH WITH SOME ACCOUNT OF PREHISTORIC ANIMAL LIFE BY E. S. GREW, M.A. EDITOR OF "KNOWLEDGE" AUTHOR OF "THE FAR EAST" _&C._, _&C._ WITH TWENTY-FIVE ILLUSTRATIONS LONDON SEELEY AND CO. LIMITED 38 GREAT RUSSELL STREET 1909 _UNIFORM WITH THIS VOLUME_ THE LIBRARY OF ROMANCE _Extra Crown 8vo. With many illustrations. 5s. each_ "=Splendid volumes."=--_the Outlook._ "=This series has now won a considerable and well deserved reputation.="--_The Guardian._ "=Each volume treats its allotted theme with accuracy, but at the same time with a charm that will commend itself to readers of all ages. The root idea is excellent, and it is excellently carried out, with full illustrations and very prettily designed covers.="--_The Daily Telegraph._ By Prof. G. F. SCOTT ELLIOT, M.A., B.Sc. THE ROMANCE OF SAVAGE LIFE THE ROMANCE OF PLANT LIFE THE ROMANCE OF EARLY BRITISH LIFE By EDWARD GILLIAT, M.A. THE ROMANCE OF MODERN SIEGES By JOHN LEA, M.A. THE ROMANCE OF BIRD LIFE By JOHN LEA, M.A., & H. COUPIN, D.Sc. THE ROMANCE OF ANIMAL ARTS AND CRAFTS By SIDNEY WRIGHT THE ROMANCE OF THE WORLD'S FISHERIES By the Rev. J. C. LAMBERT, M.A., D.D. THE ROMANCE OF MISSIONARY HEROISM By G. FIRTH SCOTT THE ROMANCE OF POLAR EXPLORATION By ARCHIBALD WILLIAMS, B.A. (Oxon.), F.R.G.S. THE ROMANCE OF EARLY EXPLORATION THE ROMANCE OF MODERN EXPLORATION THE ROMANCE OF MODERN MECHANISM THE ROMANCE OF MODERN INVENTION THE ROMANCE OF MODERN ENGINEERING THE ROMANCE OF MODERN LOCOMOTION THE ROMANCE OF MODERN MINING By CHARLES R. GIBSON, A.I.E.E. THE ROMANCE OF MODERN PHOTOGRAPHY THE ROMANCE OF MODERN ELECTRICITY By EDMUND SELOUS THE ROMANCE OF THE ANIMAL WORLD THE ROMANCE OF INSECT LIFE By AGNES GIBERNE THE ROMANCE OF THE MIGHTY DEEP By E. S. GREW, M.A. THE ROMANCE OF MODERN GEOLOGY SEELEY & CO., LIMITED Grateful acknowledgment is due to Mr. Henry R. Knipe for his kind permission to reproduce some of the illustrations of extinct animals contained in his scholarly work entitled, _From Nebula to Man_ (J. M. Dent and Co.). CONTENTS PAGE CHAPTER I THE BUILDING OF THE EARTH 17