218 



The section is a very instructive one, as it throws much light 

 upon the geological history of the Lower Glenelg, and the 

 surrounding area, during Pleistocene and recent times. Since its 

 deposition, hundreds of square miles of land have emerged from 

 the ocean, through which the Glenelg has since cut a channel 

 120 miles long, over 100 feet deep, and from 100 yards to nearly 

 a mile in width. Moreover, the outpouring of the sheets of lava, 

 which cover a great part of the surface in the South- West, is 

 jDrobably a subsequent event ; while it is certain that one entire 

 formation, the Dune-limestone, now the most striking feature of 

 the coast scenery, belongs to a still later period. 



LIST OF FOSSILS. 



The list of fossils is incomplete in the Family Pleurotomidae 

 (as its very considerable number of species have not yet been 

 elaborated), and in the class Polyzoa, whilst the Foraminifera are 

 wholly omitted. The asterisk (■^) in the geographical columns 

 indicates that the occurrence is restricted. 



Other Occurrencks. 



