THE ORIGIN OF THE EARTH 



By THOMAS C. CHAMBERLIN 



Head of the Department of Geology, The University of Chicago 



xii+272 pages, 8vo, cloth 



$1.50 net, postage extra (weight 1 lb. 6 oz.) 



FROM THE PREFACE 



"In telling the story of this search for the mode by which the earth came into being, we 

 have let the incidents that led the inquiry on from one stage to another fall in with the steps of 

 the inquiry itself. It is in keeping with the purposes of this series of booklets that the motives 



which set researches going should have their place with the quests that arose from them 



The final story of the birth of the earth will come only after a time, when the vestiges of creation 

 have been more keenly discerned and more faithfully rendered than is possible now." 



CONTENTS 



V. The Forbidden Field 

 VI. Dynamic Encounter by Close Approach 

 VII. The Evolution of the Solar Nebula into 



the Planetary System 

 VIII. The Juvenile Shaping of the Earth 

 IX. Inner Reorganization of the Juvenile 



Earth 

 X. Higher Organization in the Great Con- 

 tact Horizons 



One of "The University of Chicago Science Series" 



THE UNIVERSITY OF CHICAGO PRESS 



CHICAGO, ILLINOIS 



Introduction 



CHAPTER 



I. The Gaseous Theory of Earth-Genesis in 

 the Light of the Kinetic Theory of Gases 

 II. Vestiges of Cosmogonic States and Their 

 Significance 



III. The Decisive Testimony of Certain Ves- 



tiges of the Solar System 



IV. Futile Efforts 



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