At!T. XI. — N'otes on fhe Phy siogra.pl ly of the Western 

 ■portion of the County of Crocjingolong. 



With two \Yoo(l-cnts. 



By James Stirling, F.G.S. 



[Read Dec. 13, 1888.] 



Part I. — Topography. 



Hie extreme eastern portion of the Colony of Victoria is, 

 perhaps the least known area within its boundaries. Having 

 recenti}' traversed the area in several directions, from the 

 coast line to the colony bonndary, in order to examine areas 

 being prosjiected for gold, the author embraced the 

 opportunity of making, in addition to geological observations, 

 some notes on the native vegetation or botany, and climate 

 or meteorology of the area, wdiich it is hoped may serve as 

 an introductory notice of the physiography of this little 

 known region of Victoria. 



The Watercourses. 



The principal valleys excavated from the area are tlie 

 Snowy and its tributaries, and the Bemm and Cann rivers. 

 The Snowy forms the western boundary of the county of 

 Croajingjlong, and has the largest drainage area. Rising 

 outside the limits of the area, amid the snow-clad heights of 

 Mount Kosciusko, the Pilot, and Mount Cobberas, at an 

 elevation between GOOO and T-oli feet, the Snowy has 

 eroded its [)assage through rock mas.ses which may be said to 

 present geotectonic features of great interest to the geologist, 

 mainly, palaeozoic rocks in the u})per valley, and tertiary 

 in the lower. The effects of the unecpial ratios of denudation 

 and erosion of different rock masses under similar and 

 different climatal conditions, are strilcingly exhibited in the 

 Snowy watershed area ; but as the main features lie outside 

 the county of Croajingolong, partly in the county of Tambo, 

 Victoria, and in the Maneroo table land in New South 

 Wales, they cannot be properly discussed in this paper. 

 In the Rev. W. B. Clarke's " Southern Gold Fields," and 



