285 



oleosa, F. v. M.) removed from a well, sunk beside the tree, 

 at a depth of 50 ft. The roots are up to \ in. or more in 

 diameter and very porous, the opening of the tubes being 

 just visible to the naked eye. The tree was growing about 70 

 miles north of Eenmark in a slight depression. Being of 

 rather luxuriant growth, a bore was put down beside it in 

 search of water. At 115, ft., a portion of the mallee-root 

 came up ; at 124 ft. water was tapped. The well was now 

 being sunk to reach this water, and when visited had reached 

 430 ft. Professor Wood Jones showed a melanistic variety of 

 the common opossum (Trichosurus vulpecula) which was taken 

 when young from the pouch of a normally-coloured female; 

 also a series of otoliths from South Australian fish. Mr. E. 

 It. Waite, on behalf of the South Australian Museum, showed 

 a series of all the sea-horses known in South Australia, 

 seventeen in number, including five new species. Mr. A. M. 

 Lea exhibited some red mites, found in immense numbers on 

 apricot trees, at Angaston ; also pumpkins, in various stages, 

 attacked by the squash-tip disease, a fungus that has 

 destroyed more than half the past season's crop of pumpkins, 

 melons, and marrows in South Australia. 



Ordixaey Meeting, May 12, 1921. 



The Vice-President (R. H. Pulleine, M.B.) in the 

 chair. 



Election. — R. J. Burton was elected a Fellow. 



Nomination. — Gilbert Henry Dutton, B.Sc, F.G.S., was 

 nominated as Fellow. 



Notice of Motion by A. G. Edquist re planting of 

 Morialta Reserve. 



Papers. — "'Notes on some Western Australian Chitons 

 (Polyplacophora) with Additions to the Fauna, and the 

 Description of a New Species of Rhyssoplax," by Edwin 

 Ashby, F.L.S., M.B.O.U. ; ''Geological Memoranda (second 

 contribution).. Subjects: I., Miniature Serpuline 'Atolls'; 

 II., Pseudo-Cryptozoon Structure; III., A Pre-historic 

 Alluvial Fan at the Mouth of the Glen Osmond Gorge; IV., 

 The Occurrence of Scoriaceous Boulders in the ancient gravels 

 of the River Torrens," by Professor Walter Howchin, 

 F.G.S.; ''Notes on Old Native Camps at Commodore Point, 

 Encounter Bay," by R. H. Pulleine, M.B. 



Ordinary Meeting, June 9, 1921. 



The Vice-President (R. H. Pulleine, M.B.) in the 

 chair. 



Election. — Gilbert Henry Dutton, B.Sc, F.G.S. . was 

 -elected a Fellow.. 



