BY R. M. JOHNSTON, F.LS. 95 
WesteRN RarnFratt (1890). 
: Annual : 
: Altitude . Maximum 
Station. rainfall 
| feet. (inches). month. 
€orinna re 185 oh 69°50 eh October 
Strahan so 20: Ane 51°39 a: October 
Waratah Pe 2,000 a, 16:45 ue October 
Mean ... Re 65°78 
EASTERN RAINFALL. 
Great Lake ... 3,022 gfe 3464 at June 
Ross = 580 whe 19°95 Coe June 
Oatlands Th L3a/ ae, 23,48 ie June 
Bothwell Bid DOO CE lm ome 23°63 oe June 
Mean, ©... ee 25°42 
So far as we can judge from existing meteorological condi- 
tions, which show that precipitation on the western portion 
of the plateau is nearly three times the amount of that 
in its eastern portion, it 1s obvious that if astronomical causes 
produced a lowered temperature in the Southern Hemisphere 
during the last period of maximum eccentricity, combined with 
winter in aphelion, the greatest precipitation of snow would take 
place near to the western margin of our great mountain plateau, 
and would there, probably, collect in sufficient mass to outweigh 
the short, hot summer melting, and to supply its western 
alpine valleys with numerous ice streams or glaciers; and 
while, therefore, supplying prima facie evidence of favourable 
conditions for the development of glaciers on the west, it is 
also suggestive as an explanation of the apparent total absence 
of evidence of glaciation on itseastern slopes, where the 
summer melting might exceed the amount of precipitation, 
In any case, it adds greater force to conclusions drawn from 
the positive evidences of glaciation observed by various 
persons in the alpine valleys of our western highlands, a 
brief account of which may now be given in chronological 
order. 
EVIDENCES OF GLACIATION IN THE ALPINE VALLEYS OF 
WestERN HIGHLANDS OF TASMANIA, 
TI have already alluded to Mr. Charles Gould’s observations, 
made about 40 years ago, of abundant evidence of the usual 
dynamic effects of ancient glaciers in the principal alpine 
valleys of the western highlands of Tasmania, although it 
is to be regretted that this most accomplished observer, so 
