338 
protoconch was sinistral, while later developed portions of 
the shell were dextral. 
Paper. — "Description of New Australian Lepidoptera,'"' 
by Oswald B. Lower, F.E.S., Lond. 
Annual Meeting, October 3, 1905. 
The President (J. C. Verco, M.D., F.R.C.S.V in the 
chair. 
The annual report and balance sheet .were read and 
adopted. 
Election of Officers. — J. C. Verco, M.D., F.R.C.S., as 
President: Professor E. H. Rennie, D.Sc, F.C.S., and Rev. 
Thomas Blackburn, B.A., as Vice-Presidents : Walter Rutt, 
C.E., as Hon. Treasurer. 
Election of Members of Council. — Dr. Cleland and W. 
B. Poole. 
Election of Audttohs. — J. S. Lloyd and David Fleming. 
Papers. — "On the Recombination of Ions in Air and 
other Gases," by Professor W. H. Bragg, M.A. "Notes on 
Some Decapod Crustaceae" (No. III.), by W. H. Baker. "Des- 
cription of Australian Curculionidse, with Notes on Previously 
Described Species (Part III.), Subfamily Otiorhynchides,'" bv 
Arthur M. Lea. "'Description of a New Species of Mantidse 
and of Six New Species of Phasmidae, collected in the North- 
West Region of South Australia," by J. G. O. Tepper, 
F.L.S. "Further Notes on the Australian Coleoptera."" by 
Rev. Thomas Blackburn, B.A. 
ANNUAL REPORT, 1904-5. 
The Council has to report that the work of the Society m 
the various departments of science has been maintained. The 
following papers have been read or laid on the table:— "New 
Species of South Australian Marine Mollusca,'" by J. C. 
Verco, M.D., F.R.C.S., parts ii. and iii. - Ad(htiuns to the Cam- 
brian Fauna of South Australia," by Robert Ethei'id,i;e. " An 
Outline of a Theory of the Genesis of Motion in Living Bodii'S.' 
by T. Brailsford Robertson. 'On the Formation ^knuwn as 
the Beds of Glacial Till of Cambrian Age in South Australia '' 
by J. D. Iliffe, B.Sc, and Herbert Basedow. 'South Aus- 
tralian Nudibranchs and an Enumeration of tlie Known Aus- 
tralian Species," by Herbert Basedow and Charles Hedley, 
F.L.S. "On Naticoid Genera, Lamellaria, and Caledoniella^ 
from South Australia," by Herbert Basedow. "Report on 
the Mollusca collected by Herbert Basedow, on the S.A. Go- 
