BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol. 19, pp. 193-220 September 4, 1908 



OUTLINES OF HYDKOLOGY^ 



BY TV J MCGEE 



{Read before the Society December 28, 1906) 



CONTENTS 



Page 

 Prologue 193 



Elements of hydrology 195 



Water as a planetary constituent 195 



The hydrosphere and its divisions 190 



General functions of the hydrosphere 197 



Special functions of moving water 19i) 



Reflex functions of water work 200 



Mechanism of water work 201 



Internal movement of running water 204 



Concept of the water module 206 



Cumulative character of water work : 210 



Role of water in the ontosphere 212 



The field of hydrogeny 213 



Applications of hydrology -. 214 



Functions of the psychosphere 214 



Use of the corpus 215 



Navigation 216 



Power 216 



Diversion 217 



Production 219 



Epilogue 219 



Prologue 



In general the progress of attention is in the direction of concentration, 

 or from the remote to the near, from the rare to the common, from the 

 exceptional to the usual, from the abnormal to the normal, and usually 

 from the simple to the complex ; and concomitantly the progress of con- 

 sciously systemized knowledge has trended from sky to soil and from star 



1 Manuscript received by the Secretary of the Society August Id. IOCS. 

 This paper was read under the title "River sediment as a factor in applied geology. 

 It is revised to July 30, 1908. 



XIX— Bull. Geol. Soc. A.m., Vol. 19, 1907 '1^3) 



