( i6i ) 



The fecond place in which I made this 

 experiment was between Saline and Felicu- 

 da, and the third between Fellcuda and 

 Aiicuda, in both inftances, at the point of 

 greateft diftance, as nearly as the eye could 

 meafure, between the two iilands. In each 

 of thefe fituations, befides drawing up from 

 the bottom portions of the before-mentioned 

 cruft, I like wife obtained feveral ftony frag- 

 ments, which, from the great force it re- 

 quired to feparate them, and the recent ap- 

 pearance of their fractures, evidently had 

 an immediate communication with the folid 

 and rocky bottom. The whole number of 

 thefe fragments, great and fmall, was ele- 

 ven ; of which four were brought up be- 

 tween Felicuda and Aiicuda, and feven be- 

 tween Saline and Felicuda. The bafe of 

 five * of them was a petrofilex almoft 

 opake, affording fparks wiih fteel, compadt, 

 of a grain a litde fcaly, but fine ; the colour 



* The author muft here have committed fome mif- 

 take, as he, immediately before, faid the whole number 

 of pieces was eleven, and now mentions ^ve and feven. 

 T. 



VOL. III. M of 



