22 Proceedings of the Royal Society of Victoria. 



From here to Fenwick's Gully, only Upper Tertiary beds were 

 seen along the shore. On following up the gully the yellow 

 earthy limestone, which forms the upper portion of the eocenes 

 in the Geelong district, was seen outcropping frequently. It is 

 overlain by a white earthy travertin, which is derived from it, 

 and is bur-ned for lime in the district. To the north of the 

 QueensclifF Road, is a quarry on the side of the gully, which has 

 for many years supplied the road with metal. 



The hard rock occurs in narrow irregular bands, varying from 

 a foot to a few inches in thickness. The rest of the deposit 

 consists of yellow earthy limestone of a softer texture. The hard 

 bands are composed of a fawn-coloured, granular, siliceous lime- 

 stone which rings under the hammer and breaks with a clean 

 sharp fracture. Sir Richard Daintree, who analysed it, states its 

 composition to be as follows*. 



Carbonate of lime ... ... 75-20 



,, ,, magnesia ... ... 3 '00 



Silica ... ... ... 15-79 



Alumina and peroxide of iron ... 3-00 



96-99 



The following are the fossils obtained from this locality, owing 

 however to the very hard nature of the rock, it is a somewhat 

 difficult matter to collect any number of specimens. 



Placotrochus deltoideus, Duncan. 



Lovenia Forbesi, Duncan. 



Dimya dissimilis, Tate. 



INIarginella propinqua, Tate. 



? Ancillaria sp. 



Cypnea sp. (cast probably leptorphyncha). 



Turritella sp. 



From an inspection of the above list, the horizon to which 

 these rocks belong will be readily recognised as eocene. 



Between the mouth of the gully and Ocean Grove the \ sheet 

 (29 N,W.) marks a continuous outcrop of lower tertiary strata. 

 Although we followed the mai'gin of the lake between these two 



* Sehvyii and Ulricli, Ex. Essays, 1865, pp. 35 and 73. 



