BioiUUng Stones of Victoria. 1 77 



may be thrown on this movement by the results in the follow- 

 ing tests on the stone. 



Apollo Bay Sto?ie. 



This is similar to the BarralxK)) Hills stone, with tlie 

 exception that it is fresher and has a bluish-grey colour. It 

 is of Jurassic age, and outcrops all along the coast in the neigh- 

 bourhood of Apollo Bay. the (juarry being situated right on the 

 coast. The overburden is small, and even just below the capping 

 the stone is remarkably fresh. Some stone quarried about fif- 

 teen years and which has been exposed to all weathers, is in a 

 good condition, having weathered excellently. There is a 

 fading in colour, but this is very little more pronounced than 

 that which takes place after three or four years' exposure. 



Blocks of any size within reason are obtainable, and the 

 stone has the advantage of working very freely and dressing 

 well. 



It has not been used to any extent, but may be seen in the 

 Cape Otway lighthouse, built many years ago, and also in the 

 recently built Windsor Exchange. 



Bacclnis Marsh Stone. 



This is a soft, even-grained sandstone of light brown colour. 

 It is not at all a compact stone, and is unevenly ironstained. It 

 is quarried at Bald Hill, about three miles from Bacchus Marsh, 

 and has been \ised largely in that district. The stone is the 

 well-known Bacchus Marsh sandstone of Permo-Carboniferous 

 age. An examination of the quarry shows that it is anything 

 but uniform in hardness, and also in quarrying a large amount 

 of waste material is produced. This stone has been used in 

 the Treasury Building, Spring-street, Melbourne, but has not 

 stood at all well, many of the l)loeks being so rotten as to cause 

 their replacement some little time ago. Several structures of 

 this stone in Bacchus Marsh exist, but in every case, with the 

 exception of the Church of England, the stone is in a very bad 

 state. In the latter building the stones are rough dressed, 

 but very uneven in colour. 



