256 



INDEX 



water, 24 ; service within 

 the plant, 23 ; required 

 by crops, 10, 23, 24, 204. 



Water, movements of, 26. 



Capillary, 26 (see capillary move- 

 ments) ; causes of, 26 ; 

 direction of, 28. 



Thermal, 28 ; causes, 28 ; direc- 

 tion of, 28. 



Water gauge tubes for hose-level, 

 166. 



Water level, 106. 



Water-table, ground. 



Data concerning, 201. 



Facts concerning, 201. 



Falling of, 200. 



Chief causes of, 201 ; removal 

 of forests, .increasing run- 

 off, 202; breaking of 

 prairies, increasing evap- 

 oration, 202 ; direct 

 draft upon underground 

 water, by draining mines, 

 203, by artesian wells, 203, 

 by city wells, 203. 



Rising, 200. 



Printed in the United States of America. 



