IV£S T INDIA N VOL CA NIC ER UP TIONS 2 1 5 



gestion was early offered that a rotary motion of tornadoes 

 which emanated from the summit might account for the mounded 

 topography. I am now persuaded that the rolling character of 

 the stream deposits which doubtless originally had regular flood- 

 plain cross-sections was largely due to this geyser action and 

 to the presence of remnants of these secondary cones. These 

 were left in every stage of demolition by shifting in the vents, 

 by migration of the stream channels, by the degradation of the 

 channel which carried the water surface out of reach of the main 

 vent, or simply by the disappearance of the stream water. 



Geo. Carroll Curtis. 



