XXX11. ABSTRACT OF PROCEEDINGS. 



Monthly Meeting, 13th October, 1920. 



Dr. O. Anderson in the Ohair. 



Nine members and three visitors were present. 



exhibits: 

 From the Mining Museum: — (a) Specimens of " Pele's 

 hair" and of gropy lava from Kilauea; (b) pyrites from 

 Mount Stewart Mine, Leadville. 



paper : 

 Mr. B. C. Andrews contributed a paper on "The Frame- 

 work of the Pacific," emphasising its essential structural 

 unity, while at the same time recognising the instability 

 of the western as contrasted with the stability of the 

 eastern portions. Instability is indicated by the varying 

 heights to which the coral reefs have been raised in many 

 of the coral islands of the western Pacific. The eastern 

 portion is remarkably clear of islands, and in the case of 

 the Hawaiian Group, at all events, the botanical evidence 

 is against the theory of a former connection with the 

 mainland. 



The subsequent discussion was participated in by Pro- 

 fessor Cotton, Messrs. Osborne and Browne, Father Pigot 

 and the Chairman. 



Monthly Meeting, 10th November, 1920. 



Professor Sir Edgeworth David in the Chair. 



Eleven members and three visitors were present. 

 exhibits : 



1. Mr. E. O. Andrews exhibited and explained a40-chain 

 geological map of portion of the Barrier Ranges, indicating 

 the principal tectonic features of the region, and in par- 

 ticular a great fault with a horizontal displacement of 

 about seven miles. 



