loOcT.. 1912.] Note oil LiiHcstone Deposits hi Victoria. 



601 



l"he deposit coukl be readilv and 

 cheaply worked by running a side 

 line in from the main Port Fairy 

 railroad, preferably on the Koroit 

 side of Warrnambool, towards Levy's 

 Point, or half-a-mile on the Mel- 

 bourne side of the Warrnambool 

 station, close to the Breakwater-road. 

 The extremity of this side line could 

 lie made portable, and bv means of 

 a steam scoop the sand lifted and 

 deposited in trucks at a \ery small 

 cost, probably not more than a shilling 

 per ton. 



The Dunes on the seaward side 

 only should be worked, for those 

 extending inland are of much lower 

 grade, being contaminated with debris 

 and the adjacent soil. 



The fine state of dixision makes 

 burning for caustic lime out of the 

 question. The degree of division, 

 however, is hardly fine enough for 

 agricultural purjioses, and this is the 

 main disadvantage of the deposit, and 

 it is questionable whether grinding to 

 a finer state of di^■ision would be a 

 profitable undertaking. A test, con- 

 ducted in the laboratory, showed the 

 lime in Geelong marl to be more 

 readily available than that in the sand 

 dunes. 



At Steer's limestone quarry, in the 

 heart of Warrnambool, a certain 

 amount of limestone sand and dust 

 accumulates. This is available at 

 7$. per ton, and, although rather 

 coarse in texture, it is a xery pure 

 material and well worthy of note. 



Unfortunately, here again one is 

 beset with the "quantity available" 

 difficulty. From the stand-point of 

 disintegration the soft yellow lime- 

 stones, such as tho.se occurring at 

 Bellevue and Picnic Point, Bairns- 

 dale, are more readilv ground than 

 the hard, dense, and compact blue 

 and grey limestones occurring at Lily- 

 dale, Mansfield, and other parts. 

 Some of the yellow limestones contain 

 up to I per cent, phosphoric acid — 

 an important advantage. 



