BY A. MONTGOMERY, M.A. 169 
extent. While inclined to believe that the ice covering has 
been more extensive than he is disposed to allow, in the main 
I agree with his view, and do not think that the whole 
country could have been ice bound. Many of our indigenous 
animals existed in the colony before the probable date of the 
glaciation, and if the latter had been extreme would have 
been killed out altogether, in which case, if Iam right in 
referring the cold period to a time subsequent to the sever- 
ance of Tasmania from the Australian Continent, there would 
have been no chance of a fresh stock having been obtained 
from the mainland after the climate again became milder. 
Outside of this colony evidences of glacial action have 
been found in the Australian Alps and on the beach near 
Adelaide. The latter occurrence, first described by Professor 
Tate, has been questioned, but is confirmed by Mr. R. L. 
Jack, who visited the place in 1891. The glaciation marks 
in the Australian Alps seem to be very similar to those in our 
highlands, but the Adelaide occurrence is not so easy of 
explanation, apparently indicating a large glacier at sea level 
at a period later than miocene. Mr. Jack (‘Geology of Queens- 
land,” p. 619), in referring to this, also quotes from the 
“ Challenger” reports to show that Kerguelen Land, too, has 
been at no ancient date completely covered by heavy ice, and 
points out that if the Antarctic ice-cap were extended to 
cover Kerguelen Land, there would be no improbability of its 
also reaching the shores of Australia. 
The whole subject is most interesting, and has numerous 
aspects on which more light is required, and fresh proofs of 
the extent and date of the glacial action all over the Southern 
Hemisphere will be eagerly looked forward to. 
