LINOSA AND ITS ROCKS 35 



more femic rocks (basalts), which formed small cinder cones similar 

 ■to those of Linosa. It might be argued from this that the last erup- 

 tions of Linosa belong to a very recent date, subsequent to those of 

 the earlier salic lavas of Pantelleria, and possibly contemporaneous 

 with those of the final basaltic cones of this island. And this view is 

 strengthened by consideration of the very recent submarine eruptions 

 of 1 83 1 and 1 89 1 in the neighborhood of Pantelleria, the lavas of 

 which are highly femic, and resemble those of Linosa and the last 

 eruptions of Pantelleria. 



