THE GLACIER EPOCH OF AUSTRALASIA. 
Review oF THE HvIpENcCES oF ForRMER GLACIATION IN 
AUSTRALASIA, WITH CRITICAL OBSERVATIONS UPON 
THE PriIncipAL CausAL HYPOTHESES WHICH HAVE 
BEEN ADVANCED TO AccouUNT FOR GLACIAL Epocus 
GENERALLY. 
By R. M. Jounston, F.L.S. 
Read 13th June, 1893. 
THE GLACIER EPOCH OF AUSTRALASIA. 
CONTENTS. 
INTRODUCTION : 
Evidences of Ice-action derived from the study of existing 
Glaciers in the Northern Hemisphere. 
Evidence of former glacial action—Moraines, roches-mou- 
tonneés, scooped or abraded lake-basins, striated rocks 
and stones, erratics, perched blocks. 
Principal evidence of intense glacial action, boulder-till, or 
Grund-moraine. 
The glacial “ Till” of Scotland. 
Inferences from the Glacial phenomena of Scotland. 
Hvidences of former glaciation ins Australia, New Zealand, 
and Tasmania. New Zealand, Australia. 
Apparent absence of glacial deposits corresponding to the 
“Till” of Scotland. 
Evidences of comparitively recent glaciation on the Australian 
mainland, as recorded by various observers. South 
Australia. 
Evidences of glacial action in the elevated valleys of the 
Australian Alps. 
Doubtful evidence at Korkuperrimal on lowlands. 
Evidence of recent glacial action in Tasmania. 
Glaciation in the Alpine valleys of the Western Highlands 
of Tasmania. 
Evidence of Glacial Epochs concurring with Great Cycles of 
change in Organic Life. 
Glacial Hpochs harmonising with Great Cycles of change in 
Plant Life. 
Evidences of glacial action in rocks of Permo-Carboniferous 
age. Tasmania, Australia, other Countries. 
F 
