387 



ABSTRACT OF PROCEEDINGS 



OF THE 



Royal Society of South Australia 



(Incorporated) 



FOR 1919-20. 



Ordinary Meeting, November 13, 1919. 



The President (Sir Joseph C. Verco, M.D., F.R.C.S.) 

 in the chair. 



Nominations. — Herbert Mayo, LL.B., and W. W. 

 Weidenbach as Fellows. 



Exhibits. — Professor Hoavchin, on behalf of Sir Joseph 

 Verco, showed pseudomorphs of shells in precious opal sent by 

 Mr. Hackendorf from Stuart Range, Central Australia. They 

 included 2 Mytilus, 1 Trigonia, and several bivalves. The 

 matrix was travertine limestone, which was interesting in 

 a petrological way. Mr. A. M. Lea exhibited some longicorn- 

 beetles fSceleocantha gigas), the male of which is hairy and 

 has four remarkable basket-shaped appendages to the head,, 

 rendering it one of the most curious species of the family in 

 the world; the female is about twice its size, is much less 

 hairy, and the head appendages are normal. He also showed 

 the sexes, eggs, and newly-hatched young of a curious walking- 

 stick insect ( Acrophylla chronus). Mr. F. R. Zietz showed 

 Oenothera missouriensis, a plant growing wild at Mitcham, 

 apparently escaped from an old garden. Mr. A. R. Riddle 

 showed a new electric lamp, and other exhibits connected with 

 X-ray work [vide Miscellanea]. 



Paper. — "The Igneous Rocks of Encounter Bay, South 

 Australia," by W. R. Browne, B.Sc, communicated by 

 Professor Howchin, F.G.S. 



Ordinary Meeting, April 8, 1920. 



The President (Sir Joseph C. Verco, M.D., F.R.C.S.) 

 in the chair. 



Elections. — Herbert Mayo, LL.B., and W. W. Weiden- 

 bach as Fellows. 



Nominations. — Professor Frederick Wood Jones, M.B., 

 B.S., M.R.C.S., L.R.C.P., D.Sc, and Professor J. R. 

 Wilton, M.A., D.Sc, as Fellows. 



