252 prockedings of section c. 



Age of Eruptives. 



The following additional proofs have been found that the age of 

 at least the first series of volcanic eruptives of this area is Trias-Jura, 

 contemporaneous with the uppermost portion of the Walloon coal 

 measures : — 



(1) Trachyte-tufE, containing several well preserved Trias- 



Jura plant imprints (Tseniopteris) was found in the Esk 

 District. 



(2) A thick bed of conglomerate with the same strike and dip 



as the Walloon coal measures in the same district contain 

 numerous waterworn pebbles of trachyte and basalt, 



(3) Alkaline trachyte was found 5 miles to the N.W. of Esk 



interbedded with the shales containing Trias-Jura plants 

 (T£e]uopteri3, Alethoptcris, Thinnfeldia, &c.). 



This Committee was re-appointed as follows :~ 



Dr. H. I. Jensen, Professor T. W. E. David, Professor P. Marshall, 

 Mr. W. H. Twelvefrees, Mr. K. A. Wearne, Mr. C. A. Siiss- 

 milch. Professor Woolnough, Mr. H. S. Summers, Mr. D. 

 J. Mahony, Dr. D. Mawsou ; Professor E. W. Skeats (Secre- 

 tary). 



The sum of £50, voted at the Sydney meeting and not expended, 

 •was revoted. 



(/) PHYSIOGRAPHIC FEATURES OF AUSTRALASIA 

 COMMITTEE. 



The General Council appointed the following Committee to study 

 and correlate the Physiography of Australasia : — • 



Mr. W. Howchin, Mr. Griffiths Taylor, Mr. J. T. Jutson, Mr. C. 

 A Siissmilch, Mr. H. C. Richards, Mr. W. H. Twelvetrees, 

 Mr. F. Chapman, Mr. E. Stanley, Dr. T. S. Hall, Dr. H. I. 

 Jensen, Dr. D. Mawson, Professor E. W. Skeats, Professor 

 T. W. E. David, Mr. D. J. Mahony, Mr. E. 0. Marks; 

 Mr. E. C, Andrews (Secretary). ~ 



