250 PROCEEDINGS OF SECTION C. 



would be materially strengthened by the addition to it of Dr. L. Cock- 

 ayne, F.R.S., whose unrivalled experience of New Zealand plant ecology 

 would be of the greatest assistance when considering variations of 

 climate in the Southern Hemisphere. 



The General Council re-appointed the Committee under the 

 following designation : — 



Kainozoic Climate Committee. — To investigate questions of 

 Kainozoic Climate in Australasia. 



The Committee to consist of : — Dr. H. J. Jensen, Mr. C. A. Suss- 

 milch, Mr. E. C. Andrews, Mr. W. Howchin, Mr. F, Chapman, Mr. H. G. 

 Richards, Mr. R. H. Cambage, Dr. J. C. Verco, Dr. T. S. Hall, Dr. D. 

 Mawson, Professor Woolnough, Mr. R. Speight (Secretary). 



(e) THE ALKALINE ROCKS OF AUSTRALASU 

 COMMITTEE. 



{See Vol. XIII., p. hit.) 



Queensland. 



(% R. A. Wearne, B.A.) 



Research work on the alkaline eruptives was carried on in the 

 following areas : — 



(1) Esk District, 40 miles north-west of Ipswich. 



Glcnrock, which towers above the township half-a-mile to the 

 «ast, consists of alkaline trachyte. 



Mount Esk and the neighbouring ranges to the north and west of 

 Glenrock are of similar formation. 



Ofctaba. — An interesting railway cutting, showing Ipswich coal 

 measures intruded by a large andesite dyke, is exposed near Ottaba, 

 7 miles north-west of Esk. 



The trachytes of this district are intruded by and,esites and 

 basalts. 



(2) Spring Bluff, to the west of Ipswich and, 10 miles from 

 Toowoomba. The Main Range between Spring Bluff and Toowoomba 

 was carefully inspected and found to consist of the Walloon stage of 

 the Ipswich coal measures capped and intruded by olivine basalts, 

 at an altitude of 1,700 feet. 



(3) The Lochyer District, which extends between the Toowoomba 

 Range and the Little Liverpool Range, was visited on several occasions. 



Mount Mistake and the whole of the meridional ridges were found 

 to be of similar formation to the Toowoomba Range, namely, olivine 

 basalt capping Trias- Jura coal measures, but at an altitude of 500 feet 

 lower. 



