BY R. M. JOHNSTON, F.LS. 129 
The above calculation would also justify us in looking for 
alpine glaciers on the slopes of the lofty Bogong Range, in 
the direction of Beechworth, adjoining, and almost a continua- 
tion of, the Australian Alps. Mount Bogong itself 6,508 
feet high, and the highest mountain in Victoria, may be said 
to be the south-westerly continuation of the Australian Alps, 
which rises into the lofty peak of Mount Kosciusko, the most 
elevated mountain in Australia. The careful observations of 
Messrs. Stirling and Dunn regarding the abundant evidence 
of glaciation in these Alps of Victoria are strongly forti- 
fied by the calculations given, proving that without any 
material alteration of present levels the elevated table lands 
and peaks of this region would ascend above the névé or 
isochional of the earlier Pliocene period, and so form the 
initial condition for producing a permanent snowfield, with 
its attendant glaciers, in the Kiewa, Mitta Mitta, and other 
mountain valleys ; in which places the two observers named 
have given ample evidence in the discovered moraines, huge 
erratics, roches-moutonnees, striated blocks, etc. 
That the evidence of glaciation on these Alps are more 
probably isochronous with the earlier cold pluvial epoch* 
which produced our older terrace drifts on lower levels of the 
Australian mainland and Tasmania is favoured by the same 
mode of determining the isochional of the névé for the period 
corresponding with the later glacial epochs of the Northern 
Hemisphere, thus :— 
ALT. 
Existing isochional of snow line 
about oe oe ae mee 11,000ft. 
Less depression of névé due to ex- 
tremity of orbit at last glacial 
epoch in Northern Hemisphere. 
Max. effect estimated to be about 
210,000 years ago... os a 3,000ft. 
Estimated height of névé or snow 
field at the time of the last glacial 
epoch ain 2 oe sie 8,000ft. 
Present height of Mount Bogong, 
highest point of Victorian Alps... 6,508ft. 
Add waste by denudation in 210,00 
years (say) aids wa Jet elo 
ae 6,718ft. 
Falling short of the névé or snow aa 
line of the last glacial epoch by 
about 1,282 feet ... aut sat 1,282ft. 
* It is of importance to note here that Dr. Croll, impressed with the much 
greater eccentricity of the earth’s orbit corresponding with this period, was fully 
convinced that a glacial epoch must have occurred at this time. 
