EARTH FEATURES 



AND 



THEIR 



AN INTRODUCTION TO GEOLOGY 



FOR THE STUDENT AND THE GENERAL READER 



BY 



WILLIAM HERBERT HOBBS 



PROFESSOR OF GEOLOGY IN THE UNIVERSITY OF MICHIGAN 



AUTHOR OF "EARTHQUAKES, AN INTRODUCTION TO 



SEISMIC GEOLOGY"; "CHARACTERISTICS OF 



EXISTING GLACIERS " : ETC. 



' ) Nefo gork 



THE MACMILLAN COMPANY 

 $1 1912 



AU rights reserved 



