yyo journal of Agriculture, Victoria. \\o Dec, 1912. 



Torquay, Drysdale, &c. — Some of the yellow limestone of these 

 localities are very compact, and would form excellent 

 building stone. Other beds in the series, which are more 

 friable, from their comparative purity would be suitable 

 for lime burning. The marls used from the pits between 

 Geelong and Torquay run about 60 per cent. CaCOg. The 

 harder portions contain over 90 per cent., while the under- 

 lying clays, locally considered of value, only have about 

 2 per cent. 



Flinders. — This deposit is of a very limited extent, and is, more- 

 over, too soft to be of use for building purposes. It occurs 

 in a low cliff on the ocean beach, near the point where the 

 extension of the main road from Bittern railway station 

 to Flinders strikes the coast. 



Sorrento. — The greater part of the lime used in building Mel- 

 bourne in the early days was burnt at Sorrento. The 

 limestone occurs as dune rock. It is also used for building 

 purposes. 



Grange Burn. — This rock occurs along the valley of the Grange 

 Burn, near Hamilton, towards its junction with Muddy 

 Creek. It is a polyzoal limestone of a conspicuous rose- 

 pink to yellow, and is composed of remains of polyzoa, 

 shellfish, and eehinoids. This limestone is of similar age 

 to the Batesford limestone. 



Portland. — This is a whitish polyzoal limestone, which has a 

 reputation of hardening on exposure. The yellow Port- 

 land stone is softer in texture, and, therefore, not so well 

 suited for a building stone. Analyses (Barnard and 

 Dunn^ : — 



White. Yellow. 



Besides these quoted by Mr. Chapman there are many other occur- 

 rences. At I\Iarlo, near the mouth of the Snowy Kiver, there are large 

 beds of tertiary limestone showing in the cliffs, probably connected 

 with the Bairnsdale beds. No analysis is given in the October Journal 

 of the Merriman's Creek limestone. The following is an analysis of 

 the marl or limestone found at Seldom Seen, in the same district: — 



Percentage. 



CaC03 .. .. 86.2 



FegOg, AI2O3 . . 2.9 



Insoluble matter . . 6.4 



Along the coast west of Torquay tertiary limestones exist at Airey's 

 Inlet, Cape Patten, Johanna River. Moonlight Head, and near Warr- 

 nambool. In the Heytesbury and Otway forests there are many out- 



