﻿338 Transactions — Geology. 



and here and there on the furrowed rocks large blocks of granite and slate lie 

 strev/n, as though placed there but yesterday fresh from the quarry. 



On the western side of the valley, near the lower end, a number of granite 

 blocks lying upon the slate show the height at which the ice formeidy stood, 

 and these blocks must have been brought down from the peaks at the head of 

 the valley, or else from the Avest side, as no granite occurs on the east side. 

 The glacier, when it attained its fullest size, was about four miles long from 

 the neve saddle to the terminal face, which must have been about 200 feet high, 

 and rested on the top of the cliff above described, over which the glacier would 

 be forced as the daily motion carried it forward. At the foot of the cliff the 

 deep ravine in which the stream runs is partly filled with large blocks of rock, 

 lying as when borne down and thrown there by the glacier. 



This interesting spot is within a day's walk of Colling wood, and a fair 

 bush track exists for the whole distance, so that it can be easily reached ; and, 

 apart from its scientific interest, the deep blue lake, with its green and grey 

 setting of birch trees and granite, forms a most pleasing scene, which would 

 well repay the artist or lover of scenery for the labour of the ascent. 



Several small glaciers existed at the heads of the Anatoki, and most 

 probably one of considerable size at the head of Clarke River, but that locality 

 I have not yet been able to visit. 



The Mount Arthur range, which attains its greatest height (5,800 feet) in 

 the Mitre Peak of Mount Arthur, gave rise to many glaciers. The most con- 

 spicuous remains that I have had the opportunity of visiting I shall attempt 

 to desci'ibe. Commencing v/ith the eastern side of the range, the principal 

 one lay just at the foot of Mount Arthur. The terminal moraine occupied 

 the bed of the stream at the point whei-e the basin at the foot of the Mitre 

 Peak contracts and the stream enters a gorge. A broad expanse of rounded 

 rocks, kept bare now by the winter snows from the overhanging peaks, shows 

 the amount of ice action to which the rocks have been subjected. This glacier 

 was triangular in shajoe, the terminal face occurring at the apex of the triangle, 

 and the ridge of the mountains formed the base. The area was about two 

 square miles, and the terminal face about 3,000 feet above the sea level. 



At the head of the Baton a small glacier occupied an oval basin at the foot 

 of Jones' Saddle, having an area of about 400 acres. 



The terminal and lateral moraines are very distinct, although much covered 

 in places with deti'itus from the mountain sides. The lower part of the old 

 bed is a swampy flat, the moraines having formed a dam which retained all the 

 mud gravel brought down the mountains by the rains. It is most probable 

 that this glacier was fed by glaciers of the second order, which existed on the 

 flat sloping mountain tops that surrounded it. A more beautiful scene than 

 this must have presented when at its greatest size it would be difiicult to con- 



