Correspondence — R. M. Deeley. 189 



detailed treatment is accorded to the Malmesbury rocks of Robertson 

 and Ashton, and a petrographical description is given of the large 

 granite intrusion of Wolve Kloof, Robertson. 



The distribution and characters of the rocks of the Cape and 

 Karroo Systems are only dealt with in so far as they throw light on 

 the principal subject of the paper ; but a fairly full description is 

 given of the occurrences of Enon Conglomerate, which is shown to 

 occupy a series of isolated basins, arranged along an east-and-west 

 line, and to lie with a strong discordance upon all the older rocks. After 

 a careful examination of the ground, it is concluded that the Enon 

 Conglomerate does not overlap the AVorcester-Swellendarn Fault, as 

 indicated in the official maps ; and that conglomerate does not appear 

 to contain any fragments of the Malmesbury rocks, which cannot 

 therefore have been exposed when it was formed. 



After a careful discussion of all the available evidence it is con- 

 cluded that the Worcester- Swellendam Fault, which has a maximum 

 throw of probably 10,000 feet, is in great part of post-Cretaceous age, 

 although there are indications of earlier movement along the same 

 line of fracture. From a study of the dominant trend-lines of South- 

 Western Cape Colony it is concluded that the district in question is 

 situated at or near the central line of the syntaxis of two great sets of 

 folds at right angles, which have assumed a fan-shaped arrangement 

 in plan, and that the great fault is a line of fracture and subsidence 

 running transversely across these lines of folding. The folding and 

 the faulting are clearly phases of one general series of events, and the 

 faulting probably resulted from a diminution or even reversal of the 

 pressure which had previously given rise to the folding. 



Baron Ferencz Nopcsa, jun., then gave some account of the Geology 

 of Northern Albania. He said that he had examined the greater part 

 of the Province of Scutari in Western Turkey, and recognized three 

 distinct v structural units: namely, the North Albanian platform, the 

 folded Cukali, and the eruptive region of Merdita. In the first region 

 Mesozoic limestone of all periods predominates ; in the second region 

 Mesozoic radiolarian chert is found ; while in the third region Meso- 

 zoic clastic rocks, volcanic tuffs, and eruptive masses are abundant. 

 The first and third units are not folded, but are, at least in part, 

 overthrusts from the north and south respectively above the second 

 (intermediate) unit, which is strongly folded. In Northern Albania 

 TJpper Carboniferous and Permian rocks are also distinguishable, and 

 there is an Eocene Flysch. 



COERESPODSTDBNCE. 



THE HIGH-LEVEL GLACIAL DBIFT AND THE LAND-ICE 

 HYPOTHESIS. 

 Sir, — In your January number Mr. T. Crook raises an important 

 question concerning the probable method of transport of the boulders 

 and shells which are now found at levels much higher than their 

 probable points of origin. Although he quotes two passages from the 

 writings of Sir Archibald Geikie and Professor Bonney pointing out 

 that it is difficult to understand how the ice could ascend steep slopes 



