REFERENCES 447 



Keferences 



Anderson, W. : (a) First and (6) Second reports of the Geological Survey of 



Natal and Zululand. Pieterrnaritzburg, 1902, 1904. 

 Bornhardt, W. : Zur Oberflachengestaltung und Geologie Deutsch-Ostafrikas. 



Berlin, 1900. 

 Corstorphine, G. S. : A former ice age in South Africa. Scottish Geographical 



Magazine, volume xvii, 1901, pages 58-74. 

 Davis, W. M. : The geographical cycle in an arid climate. Journal of Geology. 



volume xiii, 1905, pages 381-407. 

 Hatch, F. H., and Corstorphine, G. S. : The geology of South Africa. London, 

 1905. The appendix of this book contains a good list of articles on South 

 Africa. 

 Mellor, E. T. : The glacial (Dwyka) conglomerate of South Africa. American 



Journal of Science, volume xx, 1905, pages 107-118. 

 Molyneux, A. J. C. : The physical history of the Victoria falls. Geographical 



Journal, volume xxv, 1905, pages 40-55. 

 Passarge, S. : (a) Die Kalahari. Berlin. 1904. 



(&) Rumpfflache und Inselberge. Zeitschr. Deutsch. Geol. 



Gesellsch., volume lvi, 1904, protokol, pages 193-209. 



(c) Die Inselberglandschaften in tropischen Afrika. Naturw. 



Wochenschr., new series, volume iii, 1904, pages 657-665. 



Rogers, A. W. : An introduction to the geology of Cape Colony. London, 1905. 



Schwarz, E. H. L. : (a) High-level gravels of the Cape and the problem of the 



Karroo gold. Transactions of the South African 



Philosophical Society, volume xv, 1904, pages 43-59. 



(6) The rivers of Cape Colony. Geographical Journal, 



volume xxvii, 1906, pages 265-279. 

 (c) Coast ledges in the southwest of Cape Colony. Quar- 

 terly Journal of the Geological Society, volume lxii. 

 1906, pages 70-87. 



