

^> 





e 



rf-r 



1 

 ) 



A V 







..nnp 

 [then 



^ -, the 



^ 



T( 



tiy 



.el;^ 



cr?^^ 



ill 



io 



Ch. XXXIIL] 



AGENCY OF STEAM IN VOLCANOS. 



217 



tlie pipe of Strockr^ one of the Geysers^ lie could bring on an 



.^ The fragments of stone^ as well 



eruption in a few minutes."^ 

 as the boiling water^ were thrown in that case to a much 

 greater height than usual. After the water had been ejected^ 

 a column of steam continued to rush up with a deafening 

 roar for nearly an hour ; but the Geyser, as if exhausted by 

 this effort, did not send up a fresh eruption when its usual 



Fig. 130. 



\ 



-/'■#>*^/^i//yX',— 



Eruption of the New Geyser in 1810. (Mackenzie.) 



interval of rest had elapsed. The account given by Sir George 

 Mackenzie of a Geyser which he saw in eruption in 1810 

 (see fig. 130), agrees perfectly with the above description 



Henderso 



steam 



column 



remai 



to the height of 70 feet, and the white 



perpendicular notwithstanding a brisk gale of wind which 



was blowing against it. Stones thrown into the pipe Avere 



^ Journal of a Eesidence in Iceland, p. 74. 



