391 



be correct. Aldgate Creek (near the Pound) runs over a 

 coarse variety of granite known as pegmatite, forming a part 

 of the pre-Cambrian complex. In a recent visit to the Aid- 

 gate quarries Mr. Howchin discovered, in one of these, a 

 band of coarse angular fragments of pegmatite interbedded 

 with ordinary felspathic grits of the neighbourhood. This 

 proves that the pegmatites from which this band of broken 

 fragments was derived formed the hard rocks of the shore 

 line when the Cambrian deposits were in process of forma- 

 tion, thus establishing a geological uncomformity of great in- 

 terest. Mr. J. G. O. Tepper, F.L.S., exhibited a black beetle 

 ( BJaffa) found in the pij^eclay some distance below the sur- 

 face at Teatree Gully, the upper portion of a nest of a trap- 

 door spider, with circular lid, and also the fruit of the 

 Yucca, which Mr. Tepper informed the meeting requires the 

 agency of an unknown moth to mature. Mr. Tepper further 

 exhibited a specimen of "knotted" schist, from the neigh- 

 bourhood of Lyndoch, Hundred of Barossa. The bed from 

 which the specimen was obtained is usually bounded by 

 quartzite on one side and mica or gneissic schist on the other, 

 and exhibits a general north-easterly strike. It is seen in 

 Section 511, on the western side of the Barossa Creek, and 

 passes north through Sections 509 and 510. A hornblende 

 schist makes a small outcrop at the north-west angle of Sec- 

 tion 3,146 and in Section 3,141. 



Paper. — "Notes on South Australian Marine Mollusca, 

 with Descriptions of New Species," Part viii., by J. C. 

 Verco, M.D., F.R.C.S. 



Ordinary Meeting, July 7, 1908. 



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

 chair. 



Ballot. — W. G. Woolnough, D.Sc, lecturer at the Uni- 

 versity of Sydney, was elected a Corresponding Member. 



Endowment and Research Fund. — Mr. W. Howchin, 

 F.G.S., proposed a vote of thanks to the President, Dr. 

 Verco, for his generous gift of £1,000, and also to Mr. 

 Thomas Scarf e, the other generous donor to this fund. Prof. 

 R. W. Chapman, M.A., B.C.E., in supporting the 

 motion, said that in a new country research work, such as this 

 Society is doing, needed encouragement and support. The 

 hon. treasurer, Mr. W. Rutt, C.E., reminded the members 

 that an anonymous gift of 10s. had been made to the fund, 

 and suggested that that donor should be included in the 

 motion. Carried. 



Exhibits. — Mr. Ashby showed a singing toad from 



