VULCANO 75 



perhaps another 1,000 feet or so that, clearing the 

 cone completely, they had fallen on the plain at its foot. 

 A rivet, falling from the Forth Bridge, has been known 

 to pierce a two-foot plank. The energy with which 

 these bombs are endowed on falling from a height of 

 2,000 feet may be judged. On reaching the ground they 

 had dug out conical pits a yard in depth. In these 



FIG. 10. Vulcano in Eruption, Sept. 23, 1889. 

 (From a photograph.) 



some of them still rested entire, others broken in pieces, 

 while in some cases the pits were empty, and the frag- 

 ments scattered far and wide around. On the sides of 

 the cone the bombs were more numerous than on the 

 plain, and one (Fig. 11) we found still aglow with heat. It 

 had probably been thrown out the night before ; and some, 

 no doubt, were those we had seen shooting through the 

 air on the night of our first visit to Lipari. It was hard 



