CONTENTS. 



Bragg, Prof. W. tL. : On the lonisation of Various Gases 



by the a Particles of Radium 1 



Bragg, Prof. W. H. : The a Particles of Uranium and 



Thorium ... 16 



Meyrick, E. : Descriptions, of Australian Tineina 33 



Mawson, D. : Mineralogical Notes — Fetid Felspar and 

 Quartz from Umber atana. Atacamite from Bim- 

 bowrie ... ... ... •••_!:_• • •• ••• 67 



Lea, Arthur M. : Descriptions of Australian Curcuiioa'idm, 



with Notes on Previously Described Species. Part iv. 71 



Baker, W. H. : Notes on South Australian Decapod Crus- 

 tacea. Part iv. Plates i. to iii. ... ... ... ... 104 



Turner, Dr. A. Jefferis : New Australian Lepidoptera, 



with Synonymic and other Notes ... ... ... ... 118 



Verco, Dr. J. C. : Notes on South Australian Marine Mol- 

 lusca, with Descriptions of New Species. Part iii. 

 Plate iv 143 



Dennant, John : Madreporaria from the Australian and 



New Zealand Coasts. Plates v. and vi. ... ... 151 



Bragg, Prof. W. H. : On the lonisation of Various Gaises 



by the a Particles of Radium. No. 2. Plate vii. ... 166 



Mawson, D. : On Certain New Mineral Species Associated 

 with Carnotite in the Radio-active Ore Body near 

 Olary ... ... 188 



Rennie, Dr. E. H., and Dr. W. T. Cooke: Preliminary 

 Analytical Notes on the Minerals Described in the Pre- 

 ceding Paper ... ... ... ... ... ... ... 193 



Turner, Dr. A. Jefferis : A Note on the Localities Attri- 

 buted to Australian Lepidoptera by Mr. Oswald Lower, 

 F.E.S 194 



Radcliff, S. (communicated by Prof. W. H. Bragg, M.A.) : 



Radium at Moonta Mines, South Australia ... ... 199 



Verco, Dr. J. C. : Notes on South Australian Marine Mol- 

 lusca, with Descriptions of New Species. Part iv. 

 Plates viii. to x. ... ... ... ... ... ... 205 



Rogers, Dr. R. S. : Description of a New Caladenia. Plate 



xi. ... 225 



HowcHiN, Walter: The Geology of the Mount Lofty 



Ranges. Part ii. Plate xii. ... 227 



Blackburn, Rev. T. : Further Notes on Australian Coleop- 

 tera, with Descriptions of New Genera and Species. 

 xxxvi 263 



ZiETZ, A. : A Note on Some Modifications in the Morpho- 

 logical Structure of the Mammalian Vertebrae 325 



x\bstract of Proceedings 326 



Presidential Address 335 



Annual Report 343 



Balance Sheet 345 



Donations to the Library ,346 



TiisT OF Fellows, etc 357 



Appendices. 

 Proceedings, Annual Report, etc., of the Field Naturalists' 



Section 360 



Eighteenth Annual Report of the Native Fauna and Flora 



Protection Committee of the Field Naturalists' Section 361 



Annual Report, etc., of the Malacological Section 364 



Annual Report, etc., of the Microscopical Section 368 



Index 371 



