593 



Range. Captain S. A. White, referring to his remarks last 

 month about the carriage of heavy shells by the Pacific Gull, 

 stated that both Mr. W. G. Randall, of Port Lincoln, and 

 the second lightkeeper at Althorpe Island, stated that they 

 had seen the gull lift the shells of Turbo stamineus, and the 

 President quoted Dr. Murray Levick as asserting that he 

 had seen Skua gulls carrying carcases heavier than their own 

 weight. Staff-Sergeant A. R. Riddle (with the permission 

 of his O.C., Lieut. -Colonel R. S. Rogers) exhibited a series of 

 X-ray plates made with the "Coolidge" tube at the Keswick 

 Military Hospital. One "Coolidge" tube can be adjusted to 

 various degrees of hardness. There is also no fluorescence, 

 and the focal spot on the anode or anti-cathode does not 

 wander, and very sharp pictures are obtained. The beautiful 

 bone texture effects are a noticeable feature. 



Papers. — "Auroral Observations at Cape Royds Station, 

 Antarctica," by Sir Douglas Mawson, D.Sc. (introduced in the 

 author's absence by Mr. W. Howchin, F.G.S.) ;' "Hyalostelia 

 mtstralis, the anchoring spicules of a Hexactinellid Sponge 

 from the Lower Silurian Rocks of the MacDonnell Ranges," 

 by R. Etheridge, Jun. (also introduced by Mr. Howchin); 

 "The Australian Ants of the genus Aphaenogaster, . Mayr," 

 by W. M. Wheeler (communicated by A. M. Lea, F.E.S.); 

 "Acarians from Australian and Tasmanian Ants and Ant- 

 nests," by Nathan Banks (communicated by A. M. Lea, 

 F.E.S.); "Lepidoptera of Broken Hill, Part 2," by 

 Oswald B. Lower, F.Z.S., F.E.S. 



Ordinary Meeting, August 10, 1916. 



The President (J. C. Verco, M.D., F.R.C.S.) in the 

 chair. 



Election. — H. G. Darling, merchant, was elected a 

 Fellow. 



Mr. E. Ashby reported the substance of a Tetter sent by 

 the Fauna and Flora Protection Committee of the Field 

 Naturalists' Section to the Hon. Commissioner of Crown 

 Lands re Kangaroo Island Reserve and the destruction of 

 Euros in the Mount Remarkable district. A suggestion that 

 the Fauna and Flora Protection Committee of the Field 

 Naturalists' Section be formed into a separate Section of the 

 Society was referred to the Field Naturalists' Section and to 

 the Council for consideration. 



