50 T. S. Moll: 



ure yellow detrital limestones, very siniilai- to those of Point 

 Addis in every way. (^)uartz ji'rains are plentiful, and the same 

 fossils occur, polyzoa making up the bulk of the rock. At Split 

 Point the surface of the underlying basalt is cut by cluinnels, 

 and is very bouldery, so that the limestone forms deep pockets, 

 and in cliff section islands of limestone appear in the basalt, 

 the connection with the overlying beds being not ahvays shown. 

 Some of these pockets go down twenty feet below the main 

 mass, and in them the rock is quite unaltered and similar to 

 the massive beds above, so that fossils may be easily picked out. 

 Where the limestone overlies the ash beds it is generally 

 changed to a pink crystalline rock of varying thickness. 



As pointed out some years ago by Mr. Pritchard and myself, 

 the contact of the limestone and basalt is a repetition of what 

 is found near Maude, a feature which struck us when we visited 

 Split Point in 1894. 



The Jurassic rocks of the Otways come in on the shore line 

 near Point Castries, about four miles further to the south-west, 

 and between Point Castries and Airey's Inlet occurs a series of 

 beds which are clearly of tertiary age, but whose relationships 

 to the beds further east has been matter of doubt. They have 

 been described in some detail by Krause, since, close to the 

 Jurassic, they contain small lignite seams. Tliey are as a rule 

 very sandy, and in places quartz gravels occur, and at Point 

 Castries Krause notes black clays resting on the Jurassic. 



It seems almost certain that these western beds represent the 

 black beds of Anglesea, and are of fresh water origin. As we 

 go north-east along the coast, the influence of marine conditions 

 is more strongly felt, and. near Anglesea marine fossils, as men- 

 tioned, are sparingly found. Still further on the character of 

 the ])eds beneath the yellow limestone changes ; gravels and 

 grits disappear, and at Rocky Point marine fossils of all kinds 

 are common, the beds becoming richer as we approach Bird 

 Rock. Tlie limestones of Airey's Inlet (Split Point), Point 

 Addis, and about the mouth of the Jan Juc Creek, seem to be on 

 the same horizon, as the echinoderm fauna at an}' rate appears 

 to show. 



If the bed described near Point Roadknight be indeed a tuff. 

 as I am strongly inclined to think, then it is almost certainly 



