208 PROCEEDINGS OF SECTION C. 



At Rapid Bay, south of Second Valley, is another patch of 

 morainic material with several groups of granitic erratics, some of 

 which measure six feet in length. 



Victor Harbour District, lying at the entrance to the Inman 

 Valley, contains some very striking glacial features. Rosetta Head 

 (The Bluff), a prominent granite headland, near Victor Harbour, 

 formed a ridge of resistance to the ice-sheet, which came in from the 

 south. The granite obstruction led to an ice-fall and an over- 

 deepening of the glacier bed, as well as a great accumulation of 

 morainic material on its leeward side. 



King's Point, the next prominent headland, situated about 

 two miles further to the west, presents similar features. West 

 Island is a fragment of the old granitic barrier, now separated from 

 the headland, and presents a roche moutonnee contour. The head- 

 land is about a quarter of a mile in extent and is a very typical 

 glacial moraine, so modern in its appearance that it seems difficult 

 to believe that it dates back to Palaeozoic times. 



This district has been recently mapped and described, and 

 therefore need not be further dealt with in this report. ^ 



2.— WESTERN AUSTRALIA— PERMO-CARBONIFEROUS GLACIAL 



DEPOSITS. 



By A. GIBB MAITLAND. 



Since the date of my last report some further evidence regarding 

 the occurrence of Carboniferous glacial deposits in Western Australia 

 has been obtained, which will be briefly recapitulated : — 



Lyndon River, Lat. 23 S. — In the year 1907, while examining 

 the neighbourhood of Windalyia, on the Lyndon River, a hurried 

 visit was paid to the country in the vicinity of Tchugareywurdoo 

 Pool to examine the boulder bed, the existence of which had bet-i^ 

 previously noted. ^ 



The boulders consist of a great variety of rocks, and many of 

 them covered with glacial strise. The boulder bed wherever exposed 

 is in every way identical with that on the Gascoyne, the Minilya, 

 etc., to which reference has already been made in an earlier report. 

 The stratigraphical position beneath the fossiliferous limestone of 

 Carboniferous age shows it to be identical with the glacial con- 



1 See paper on " The Glacial (Permo-Carboniferous) Moraines of Rosetta Head and King's Point' 

 South Australia," by W. Howchin, Trans, and Proc. Rov. Soc. S. Aus., vol. XXXIV., 1910, pp. 1 

 to 12. Plates I to XVII. 



2Geol. Surv. Bull. 26, Perth, 1907, p. 12. 



