1867.] 



SPEATT MALTESE BONE-CAVES. 



293 



Fig. 3. — Chart shoiving the position of the Adventure and Medina 

 BanJcs, connecting Sicily with Africa. 



The figures denote the present depths in fathoms. The dotted line shows the 

 parts of the Malta Channel that would be converted to dry land by an uplift of 

 200 fathoms, and the narrow Straits that would remain through the Adventure 

 and Medina Banks. The deepest water is indicated by the black portions, the 

 banks by the dark tint, and the land by the light shading. 



