423 
dation and rounding of the ridge of the Lion’s Hill, the denudation 
of Robben’s Island, and the production of those terraces, which from 
the summit of Table Mountain appear to stretch gradually down- 
wards to the Cape of Good Hope. The separation of the Lion’s 
Rump and the Devil’s Mountain from the Table Mountain, and 
the fissures throughout the range, the author conceives were pro- 
duced during the elevation of the country. Proofs of changes of re- 
lative level of sea and land are stated to be equally apparent in the 
interior ; and Mr. Clarke says, that the inspection of an accurate map 
will convince the inquirer, that Southern Africa must have been an 
Archipelago. In conclusion, some general observations are made on 
the great similarity in the geological composition of Southern Africa 
and New South Wales. 
