238 



ABSTRACT OF PROCEEDINGS 



OF THE 



Royal Society of South Australia 



(Incorporated) 



FOR 1911-12. 



Ordinary Meeting, November 9, 1911. 



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

 chair. 



Nominations. — T. S. Poole, B.A., LL.B., solicitor, Ade- 

 laide, as Fellow, and Miss R. Stenhouse as Associate. 



Exhibits. — Mr. A. M. Lea, F.E.S., exhibited weevils 

 of the genus Mandalotus, and also Frenchia, which he said 

 was the most extraordinary insect in the world, infesting 

 Banksias and Casuarinas. The young are viviparous, and 

 resemble the larvae of the ordinary scale insects, but the 

 metamorphosis is stranger than that of many insects. Mr. 

 J. G. O. Tepper remarked that when parrots were abundant 

 the Frenchia galls were rare, and that he had seen the young 

 issuing from the tubes. Dr Verco exhibited Edentellina 

 typica, recently described by Pritchard and Gatliff, which 

 he had met with while dredging in South Australia. The 

 umbo is only on one valve, and remarkable in shape, like a 

 tiny nautilus shell. 



Discussion. — Mr. S. Dixon initiated a discussion on 

 "The Influence of Metallic Minerals on Vegetation." Mr. 

 A. M. Lea thought that the Agricultural Department was 

 the right body to take up this subject. Professor Rennie 

 said that it was a complex matter, requiring prolonged 

 biological and chemical investigation. Messrs. Edquist and 

 Tepper also joined in the discussion. 



Ordinary Meeting, April 11, 1912. 



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

 chair. 



Election. — T. S. Poole, B.A., LL.B., solicitor, Ade- 

 laide, was elected a Fellow. 



Nominations. — F. R. Zietz, ornithologist, South Aus- 

 tralian Museum; L. K. Ward, B.A., B.E., Government 

 Geologist, Adelaide; and R. L. Jack, B.E., Assistant 

 Government Geologist, Adelaide, were nominated as Fellows. 



