26 Proceeding of the Royal Society of Victoria. 



pebbles as the Indi. In the bank, however, there is a small 

 outcrop of gneissose granite, much decomposed and overlain by 

 two or three feet of gravels. 



For some two miles the track ascends very rapidly up the 

 range between the Snowy and Leatherbarrel Creeks over an 

 interesting area of granite. In many places it is an amorphous 

 or micro-crystalline felspar with a few small crystals of biotite 

 and a little quartz ; in others it has very much the appearance of 

 a foliated granite ; and again it is a typical granite with large 

 crystals of white orthoclase and muscovite, with masses of grey 

 opaque quartz. The orthoclase changes into various shades of 

 pink, red and grey, and with the disappearance of the muscovite 

 the rock becomes a pretty porphyrinic aplite. Running through 

 the granite with a general north and south strike are many dykes 

 from five to twenty-five feet wide, some of a dense, hard, dark 

 rock resembling diorite, much jointed and breaking into small 

 blocks, others of a rock something like diabase. About four 

 miles from Groggin the sedimentaiy rocks again become visible. 

 No outcrop can be seen at the junction but small loose pieces of a 

 red, very micaceous granite, much decomposed, appear on the 

 granite side of the boundary. Some fifty yards further on the 

 first outcrop of the stratified rocks occurs. It is a slightly con- 

 torted, white slate so much altered, broken and decomposed as to 

 make it difficult to get an accurate dip. This, however, appears 

 to be G6° to E. From here to the ford at the Leatherbarrel, over 

 a mile away, the rocks gradually merge into the softer and less 

 indurated slates and schists. Several outcrops convey the 

 impression that those which now are much jointed, disintegrated 

 and crumbling to a white clay were once very fissile, argillaceous 

 slates. The strike of all varies from N. to N.E. with a clip of 55° 

 to 71° E. to S.E. This western ridge has a height varying from 

 3300 to 3800 feet, 



On the point overlooking the ford the rocks are talcose and 

 argillaceous schists. Much jointed, yellowish-grey phyllites with 

 a dip of 85° to 87° to E.N.E. outcrop in the bed of the creek 

 which has here an altitude of about 3300 feet. On the steep 

 eastern slope, however, the rocks can be seen to much better 

 advantage, and observations taken are more accurate than on 

 the opposite ridge where the outcrops are small. Argillaceous 



