ABSTRACT OF PROCEEDINGS. XXX11K 



2. Dr. Walkom exhibited specimens of scale-leaves of 

 Glossopteris, from the Dawson River and Stan well, 

 Queensland. 



paper : 

 Professor Ootton read a paper on " Polar Wanderings 

 and their Geological Corollaries." The possibility of 

 migrations of the terrestrial pole was denied, after inves- 

 tigation, by physicists and mathematicians, but their 

 calculations involved certaiu fundamental assumptions as 

 to the constitution of the earth's interior which are now 

 known to be erroneous. A migration of the pole would 

 have certain effects, as, for example, in regard to the zonal 

 distribution of forms of life, etc. 



Discussion was postponed until the next monthly meeting. 



Professor Heim, of the University of Zurich, was intro- 

 duced by the Chairman, and gave some interesting notes 

 on the latest views as to the folding of the Swiss Alps, 

 illustrating his remarks by diagrams showing the very 

 complex nature of the overfolding. 



Monthly Meeting, 8th December, 1920. 

 Professor Sir Edgeworth David in the Chair. 

 Fourteen members and two visitors were present. 

 exhibits: 



1. By Dr. Walkom: — Vertebraria from Dawson River, 

 Queensland. 



2. From Australian Museum : — Axinite with associated 

 epidote and (?) albite, from Bingara, collected by Mr. D. 

 Porter. 



3. From the Mining Museum: — (a) amosite, an amphibole 

 asbestos from the Transvaal; (b) veins of chrysotile associ- 

 ated with dolomite from the Clarence River. 



