﻿252 THE GEOLOGY OF NTASALAND. [^ay I9I°> 



contemplated the possibility of this being the case. The presence 

 of boulders could be easily explained by torrent-action on mountain- 

 slopes. 



Mr. Lampltjgh expressed his confidence that everyone interested 

 in South African geology would appreciate the careful work of the 

 Authors in Nyasaland. Respecting the correlation of the complicated 

 rock-systems older than Karroo, it was premature to speculate until 

 further results had been obtained by the numerous capable investi- 

 gators now working on these rocks in the more southerly parts of the 

 continent. As regarded the Karroo System, it was instructive to find 

 that its general characters and tectonic relations in Nyasaland were 

 very similar to those in jSTorth- Western Rhodesia recently described 

 by Mr. Molyneux. It is known that in several other districts these 

 deposits were cast down on a very uneven floor, which introduces a 

 factor to be reckoned with in deciphering their present relations. 

 The Authors were to be commended for exercising caution in dis- 

 cussing the Karroo conglomerates, as it would be unfortunate if the 

 difficult problem of the glacial Dwyka of South Africa should be 

 confused by ill-founded correlations. The speaker regretted that 

 time did not allow of the discussion of other interesting matters 

 contained in the paper. 



