THE WORLD'S GEYSER-REGIONS. 



505 



Basin was covered by a lake, which possibly may have been a hot lake. 

 In our American region, siliceous cones surmounting broad sloping 

 mounds seem to predominate. Although New Zealand has a number 

 of cones or chimneys, the large basins are more numerous. The pool 

 of Te Tarata measures eighty by sixty feet, and the basin of Otaka- 

 puarangi is fifty feet in diameter. The springs in Iceland are com- 

 paratively small, as a rule, and chimney-like forms are not numerous. 



.XT 



StPULCHRE M7^ 



QUADRANT MT 



\ shoshjone 



(Shoslioire 

 i}ey^er Basin 



LEWIS 



Fig. 5.— Map op Yellowstone National Park, showtno the distribution op Hot SpRnias 

 AND Geysers. (Scale, ten miles to the iuch.) 



