442 H. S. JSuianiers : 



SoMth-We.stern New South Wales. — The following is the 

 record of the specific gravities of twenty obsidianites obtained 

 by Mr Milo R. Cudmore, from a station situated 185 miles 

 north-west of Wentworth, New South Wales, and 120 miles east 

 of Koovinsfa, South Australia: — 



Average specific gravity — 2.417. 



Tasmania. — Mr. W. F. Pettard has kindly forwarded me a 

 pamphlet on the minerals of Tasmania, prepared for the use of 

 the members of the Australasian Association for the Advance- 

 ment of Science, during the last meeting in Tasmania. In this 

 Mr. Pettard states that he is of opinion that a meteoritic shower 

 of obsidianites occurred in post-pliocene time, which impinged 

 upon the earth in a north-western track, crudely extending 

 from Tasmania to Victoria, from thence to the northern part of 

 West Australia, and thence to the western islands of the Malay 

 Archipelago. 



LITERATURE. 



1896 — Moulden, J. Collett : Petrographical Observations upon 

 some South Australian Rocks. Trans. Roy. Soc. S. 

 Australia, vol. 19, p. 77. 



1897 — Stephens, T. : Notes on a Specimen of Basaltic Glass 

 (Tficliylyte), from near Macquarife Plains, Tasmania, 

 with Remarks on Obsidian Buttons. Papers and Proo. 

 Roy. Soc. Tasmania for 1897, p. 55. 



1898— Walcott, R. H. : The Occurrence of So-called 01)sidian 

 Bombs in Australia. Proc. Roy. Soc. Victoria, vol. xi. 

 (n.s.), pt. i., p. 23. 



1898 Card, G. W. : Annual Report of the Curator and Minera- 

 logist. Ann. Rep. of Dep. of Mines and Agriculture for 

 N.S. Wales tor li)07, i)p. 190, 197. 



