Art. IV. — On the Occurrence of Striated Boulders in 

 the Penno-Carboniferous Rocks near the mouth 

 of the Shoalhaven River, New South Wales. 



By E. 0. THIELE. 

 [Read 9th April, 1903.]. 



Since 1859, when Dr. A. R. C. Selwyn^ recorded indications of 

 ice action in the Inman valley, in South Australia, fresh evidence 

 has been forthcoming from various sources, indicating wide- 

 spread glacial conditions in the Permo-Carboniferous rocks of 

 Australia. In Eastern Australia boulder beds exist as far north 

 as the Bowen River Coalfield, Queensland,^ and are well-known 

 at several places in New South Wales,^ notably at Branxton and 

 Lochinvar ; while in Victoria, the Bacchus Marsh* deposits are 

 the most extensive and best-known among the somewhat numer- 

 ous occurrences of smaller area in various parts of the State. 



In Tasmania again, the glacial beds are widely distributed, 

 being well-developed at Maria Island,^ Little Peppermint Bay,® 

 and at Wynyard.'' 



1 " Geological Notes of a Journey in South Australia, from Cape Jarvis to Mount Serle." 

 A. R. C. Selwyii, Parliamentary Paper, No. 20, Adelaide, 1859, p. 4. 



2 "Report on the Bowen River Coalfield." R. L. Jack, F.G.S., p. 7, par. 39, Brisbane, 

 1879. 



3 " Evidence of Glacial Action in the Carboniferous and Hawkesbury Series, in New 

 South Wales." Professor T. VV. E. David, B.A., F.G.S., Q.J.G.S., vol. xliii., pp. 190-196. 

 "Glacial Action in Australia, in Permo-Carboniferous Time." Professor T. W. E. David, 

 B.A., F.G.S., Q. J.G.S., vol. Hi., pp. 289-301. " Discovery of Glaciated Boulders at the base 

 of the Permo-Carboniferous System, Lochinvar, New South Wales." Prof. T. W. E. 

 David, B.A., F.G.S., Jour. Roy. Soc. New South Wales, vol. xxiii., p. 154. 



4 Note. — The papers on the Bacchus Marsh Deposits are extremely numerous, c.f. Note 

 on the Bibliography of the Bacchiis Marsh Deposits, by T. S. Hall, M.A., in the Victorian 

 Naturalist, Melbourne, 1894, pp. 125-128; and a note also by A. E. Kitson, F.G.S., in his 

 paper on the Glacial Beds at Wynyard, Tasmania. Proc. Roy. Soc. Vic, vol. xv. (n.s.), 

 Pt. I., 1902, p. 30. 



5 Note on Fossils from Maria Island, with evidence of glacial action consisting of huge 

 ice-born erratics eml^edded in rocks of Permo-Carboniferous age. R. M. Johnston, F.L.S., 

 Proc. Roy. Soc. Tas., p. 20, 1884. Notes on the Geology of Bruni Island. R. M. Johnston, 

 F.L.S., Proc. Roy. Soc. Tas., pp. 18-26, 1886. 



•! The Glacial Beds of Little Peppermint Bay, Tasmania. Prof. E. G. Hogg, M.A. 

 Report of Secretary of Mines for Tasmania, 1900-1, and Proc. Roy. Soc. Tasmania, 1902. 



7 On the Occurrence of Glacial Beds at Wynyard, near Table Cape, Tasmania. A. E. 

 Kitson, F.G.S., Proc. Roy. Soc. Victoria, vol. xv., (n.s.), pt. i., 1902. 



