CONTENTS. 
I'AOE 
lloBEBTSON, T. JiuAiLSFOKU : All Outliiic of a Tlieoiy of the 
Genesis of Protoplasmic iVJotion and i^xcitatiou. ... 1 
liASEDow, H. : Geological Uepoix on Country Traversed by 
the [South Australian Government iNorth-VVest Prospect- 
ing Expedition, 1903. Plates xiii. to xx. ... ... 57 
LowEK,, O. ii. : Sew Australian Lepidoptera (xxii.) ... iU3 
liAKER, VV. H. : Notes on South Australian Decapod Crus- 
tacea. Part li. Plates xxi. to xxiv. ... ... ... ilG 
Bragg, Prof. W. H. and R. D. ivleeman : On tlie Alpha 
Particles of Kadium, and tiieir Loss of Pange m Passing 
Through Various Atoms ana Moleculeis ... ... ... 132 
Basedow, ±1., and C. Hedley : South Australian iSudi- 
branclis, and an Jilnunieracion of clie known Australian 
Species. Plates i. to xii. ... ... ... ... .. 134 
Hedley, C. : Report on the xVlollusca Collected by Mr. H. 
Basedow on the South x^v.ustralian Government North- 
west Jj^xpedition. Plate xxx. ... ... ... ... 161 
Verco, Dr. J. C. : Notes on South Au,stralian Marine Mol- 
lusca, with Description of New Speoies. Part ii 
Plate xxxi. 
Lower, O. ±i. : Description of New Australian Lepidoptera 
with Synonymic Notes, (xxiii.) 
Basedow, H. : On Naticoid Genera Lamellaria and Caledoni- 
ella, from South Australia. Plates xxvi. to xxix. 
Bragg, Prof. W. H,, and R. D. Kleeman : On the Recom- 
bination of Ions in Air and otner Ga/ses ... 
Maiden, J. H. : An Aroid New for Australia ... 
Lea, Arthur M. : Descriptions of Australian Curculionidse, 
with Notes on Previously Described Species. Part iii. 2U9 
Tepper, J, G. O. : Insects Collected in North- Western Region 
of South Australia by H. Basedow, with Descriptions of 
NeAv Species. No. ii. ... ... ... 237 
Etheridge, R., jun. : Additions to the Cambrian Eaiina of 
South Australia. Plate xxv. ... ... ... ... 246 
Baker, W. H. : Notes on South Australian Decapod Crus- 
tacea. Part iii. Plates xxxii. to xxxvi. ... ... 252 
Blackburn, Rev. T. : Further Notes on Australian Coleop- 
tera, with Descriptions of New Genera and Species, 
(xxxv.) .. ... ... ... ... ... ... ... 270 
Abstract of Proceedings ... .. 333 
Annual Report ... ... ... ... ... ... .. 338 
Balance Sheet ... ... ... ... ... ... ... 340 
Donations to the Library ... ... ... ... ... 341 
List of i^ellows, etc. ... ... ... ... ... ... 351 
Appendices. 
166 
173 
181 
187 
207 
Proceedings, Annual Report, etc., of the Field Naturalists' 
Section 
Seventeenth Annual Report of the Native Fauna ar-. Flora 
P" )^e ..xon Committee of 'e iVield Xatnrali>t.s" ."-vction .*-'■'" 
Annual Report, etc., of the Malacological Section 360 
Annnal .. >'-ort, etc.. of .. e ' ; rosco^icni Section 
Index ... .•• .. ... ... ... ... 363 
