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PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Nov. 4, 



6. On the west side of Lake Korangamite there are several hills 

 which are crateriform. Amongst the best defined are — Mount Myrt- 

 son, having a lake or swamp in the centre, Mount Wiridgil, and 

 Mount Leura. The ordinary volcanic ash and scoriae are found on 

 these hills. Lakes Gnotuk and Bulleen-Merri, situated to the west 

 of Mount Leura, are also, I believe, ancient craters. Lava, similar 

 to that ejected from active volcanos, is strewn over the surface of 

 the hills. It is often curiously twisted ; and masses formed of regular 

 concentric layers are found so similar in form to the trunks and 

 branches of trees, that one was actually sent to me as a fossil tree. 

 On the eastern side of Lake Korangamite there are other hills of an 

 equally distinctive character, the most prominent being Mount Hesse, 

 Mount Gelhbrand, and Warrion, or Labaam. In the Korangamite 

 district we find the " Stony Rises." These occupy a large area both 

 to the south, east, and west of the lake. They consist of rocky, 

 often conical piles, about 25 feet in height, generally rising at an 

 angle of 15°, 20°, or 25°, and so close together that they are im- 

 passable to wheeled vehicles, and only permit a tortuous and uneven 

 path to the equestrian. 



7. Tower Hill Lake is situate between the towns of Warnambool 

 and Belfast, and close to the coast ; see the accompanying plan. 

 It bears some resemblance to Lakes Gnotuk and Bulleen-Merri. 



Fig. 3. — Sketch of Tower Hill Lake, near Warnambool, in the 



County of Villiers. 





1 mile. 



2 miles. 



