334 



On September 5 foilowiug 16 liymeuopterous lusects were ob- 

 served to have emerged, and one was removed alive from a 

 gall. These proved to be small wasps allied to the family 

 (Jhalcklida^, and probably new. On the same twig, deform- 

 ing the leaves, were scale-like galls, from which emerged nu- 

 merous minute black wasps (Chalcididj. Among these last 

 were found a single pair of another species, marked by gold- 

 green spots, probably jparasites upon one or other of the fore- 

 going. The first of the above-named galls was unknown to 

 W. W. Froggatt, F.L.S., the Government Entomologist of 

 New South Wales, to whom they had been submitted for ex- 

 amination. Mr. Tepper also exhibited photographs of a gi~ 

 gantic hemlock, grown in Professor Ludwig's garden, Greig. 

 These plants attained to nearly 14 ft. in height, and were of 

 such vigorous and rapid growth as to attain to one inch per 

 minute. The seed from which these plants were raised was 

 from a remarkable plant which appeared adventitiously in 

 Mr. Tepper's garden, Norwood, already noticed in these pro- 

 ceedings. According to Dr. Ludwig, who is a prominent bo- 

 tanist, these plants ar-e giant forms of an endemic European 

 species of hemlock (Coniwm maculatum). Mr. Tepper show- 

 ed photographs of witch broom, a jDroliferous growth on birch- 

 trees, produced by a fungus (Japhriria), and three other con- 

 spicuous fungi, Asteronia radiosum, on roses; Fliragmidium 

 violaceum and F. rubi, found on blackberries. 



Papers. — "The lonisation of the Various Gases by the 

 Alpha Particle of Radium," by Professor W. H. Bragg, M.A. 

 ''Note on the Localities Attributed to Australian Lepidoptera 

 by Oswald Lower," by A. Jefferis Turner, M.D. ''Further 

 Notes on Australian Coleoptera, with Descriptions of New 

 Genera and Species," by Rev. Thomas Blackburn, B.A. 

 ''Madreporaria from the Australian and New Zealand Coasts," 

 by John Dennant, F.G.S. 'Notes on South Australian Mar- 

 ine Mollusca, with Descriptions of New Species," by J. C. 

 Verco, M.D. "Anthropological Notes on the North -West- 

 ern Coastal Tribes of the Northern Territory of South Aus- 

 tralia," by Herbert Basedow. Professor E. H. Rennte, 

 D.Sc, M.A., in referring to Professor Bragg's laborious re- 

 searches on the alpha particle of radium, cone;ratulated him 

 on the work he had accomplished, and observed that the 

 amount of ionisation seemed to depend more upon the physi- 

 cal character of the gases concerned than upon their chemical 

 constitution. 



