657 



GEOLOGICAL NOTES ON KOSCIUSKO, WITH SPECIAL 

 REFERENCE TO EVIDENCES OF GLACIAL ACTrON. 



Part II. By T. W. Edgeworth David, B.A., F.R.S., etc 



(Plate xxiii.) 



i. Introductory. 



An earlier paper dealing with this subject was contributed by 

 Messrs. Richard Helms, E. F. Pittman, and the author.* 



During subsequent examinations of the Kosciusko plateau, 

 chiefly in January and February, 1906, and in January, 1907, 

 additional information has been obtained which is now embodied 

 in the present paper. 



In January, 1906, the Kosciusko plateau was visited by me in 

 company with Judge Docker, Mr. H. J. Carter, and Messrs. G. 

 and E. Carter. On that occasion a coracle was constructed at 

 the Blue Lake, and a set of soundings were obtained. In Feb- 

 ruary of the same year the plateau was revisited, the party this 

 time consisting of Mr. C. Hedley of the Australian Museum, Mr. 

 G. A. Waterhouse of the Royal Mint, Sydney, and my wife and, 

 myself. The coracle was refitted with a view to dredging, and 

 with Mr. Hedley's help, numbers of hauls were made from the 

 lake-bottom which enabled us to form some idea of the nature of 

 its fauna. Some of the material thus obtained has been described 

 by Professor Benham of Otago University, New Zealand. 



During January, 1907, a third visit was paid to Kosciusko in 

 company with a large party of University students, together with 

 Mr. E. C. Andrews of the Geological Survey, N.S.W., Mr. C. A. 

 Sussmilch of the Technical College, Sydney, and Mr. A. Mackie, 

 Principal of the Training College, Sydney. On the occasion of 

 this trip, thanks very largely to the experience of Mr. E. C. 

 Andrews, important additional information was obtained as to 

 the downward limits of the Kosciusko Pleistocene glaciation, and 

 some means of estimating its duration in geological time. 



* These Proceedings, 1901, xxvi., pp. 26-74, pis. 3-10. 

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