156 



2. " Sketch o£ tlie Greological and Physical Features o£ tlie 

 Hundreds of Cunningham and Maitland, Y.P.," by Mr. J. G. 

 O. Tepper (see p. 61). 



A topographical map (1 inch per mile), a geological map 

 (^2 inch per mile), and three profiles, and corresponding dia- 

 grammatical sections served to elucidate the subject. 



Mr. MoLiis^Eux differed from Mr. Tepper with respect to 

 his conjecture about the subsidence that he alleged was going 

 on. There might be a subsidence in one part and not in an- 

 other. Mr. J. Bulk, of Kangaroo Island, directed his atten- 

 tion to a continual rise in the locality of American River. The 

 w^ater was much shallower than it had been, and in one place 

 an oyster-bed had been raised so high that the molluscs 

 could not live. 



Professor Tate said neither Mr. Molineux's nor Mr. Tepper's 

 impressions might be correct. There might be rising land 

 while the sea was still ploughing away at it. He referred to 

 the waste of the coastline of England since the Saxon Period. 



Mr. MoLiJ^'EUX stated that the tishbrmen in the locality had 

 informed him that the Prenchman Rock at Western Cove, 

 Nepean Bay, had a considerably less depth of water over it 

 than used to exist in former years. 



Professor Tate acquiesced that that was a fair case in point. 



Ordinaet Meettxg, June 7, 1881. 

 His Honor Chief Justice AYay, President, in the chair. 

 The list of donations to the Library announced. 

 Mr. S. Politzer was elected a Pellow. 



EXIIIEITS. 



Mr. Waterhouse, Curator of the South Australian Museum, 

 exhibited a fossil fragment of a rib-bone of an extinct animal, 

 possibly that of a gigantic wombat, or of a Hiprotodon, 

 found at a depth of six feet below the surface at Thebarton, 

 and presented to the Museum by Mr. John Battersby. 



Dr. Gaze exhibited a collection of South Australian moths, 

 in illustration of his paper. 



Mr. C. A. "Wilson exhibited two species of South Australian 

 cicindelida? {Tetracha australis and T. sp.) 



The following papers were read : — 



1. " On the Comet," by Mr. Chas. Todd, C.M.a. (This 

 paper has been withdrawn by permission of the Council.) 



The subject of the paper was a conspicuous object in the 

 south-western sky during the early evening in the latter part 

 of May and the earlier part of June. The j^^P^r ^as illus- 

 trated by maps, diagrams, and an orrery. 



