THERMAL WATERS, GEYSERS. 



751 



while standing on the mound of " Fountain " geyser, whose pool was overflowing, and 

 watching a steam-jet of a hundred yards away, the jets suddenly ceased, and '• Foun- 

 tain " commenced, throwing up a jet, ten feet in diameter, to varying heights, from 



Fig. 1126. 



Beehive Geyser in action, 

 fiv to forty feet. In thirty minutes, " Fountain » stopped suddenly, and immediately 

 the steam-jet began again; in twenty minutes more, the jet again stopped, and at once 

 a small pool, a few yards from " Fountain," which was empty when that was playing, 

 but had become partly filled from its overflow, began to boil and throw up water 

 to a height of five or ten feet, and continued this for half an hour; as it moderated, 

 the steam-jet opened anew, but ceased when the boiling became more violent. The 



