LITERATURE
- Tiddeman , R. 1872 . “Ice-sheet in North Lancashire” . Quart. Journ. Geol. Soc. , xxviii : 471 – 491 .
- 1903 . 18 – 25 . Annual Report Geol. Com. Cape of Good Hope,; “Eland's Vlei Boulder-Pavement”,pp. 21–22
- Molengraaff , G. A. F. 1904 . “Geology of the Transvaal” 67 Edinburgh and Johannesburg. Riverton roches-moutonnées
- 1906 . 108 – 121 . Annual Report Geol. Com. C.G.H.,; “De Kalk”,p. 117; “General Summary”,p. 119
- Rogers , A. W. and du Toit , A. L. 1909 . —An Introduction to the Geology of Cape Colony (Longmans Green & Co.), chap. vii 117 “Striated Pavement, Eland's Vlei.“
- Evans , J. W. 1913 . “The Wearing Down of the Rocks” . Proc. Geol. Assoc. , xxiv “The Eroding Action of Ice”, ibid., pp. 261–300
- Beilby , Sir George . 1921 . —Aggregation and Flow of Solids (Macmillan & Co.).
- Du Toit and Alex , L. 1922 . “The Carboniferous Glaciation of South Africa” . Trans. Geol. Soc. South Africa , xxiv : 188 – 227 .
- Haughton , S. H. , Krige , L. J. and Krige , A. V. 1925 . “On Infra-formational Folding connected with the Glacial Bed in the Table Mountain Sandstone” . Trans. Geol. Soc. South Africa , xxviii : 19 – 25 .
- Du Toit and Alex , L. 1926 . —The Geology of South Africa (Oliver & Boyd, London), chap. xii, “The Dwyka Series” 205 – 215 .
- Kolchak , A. and Transehe , N. A. 1928 . “The Ice Cover of the Arctic Sea” . In “The Arctic Pack” 125 – 141 . Problems of Polar Research, Amer. Geog. Soc., New York., etc.,pp. 91–123
- Lovegrove , E. J. 1929 . “Attrition Tests of British Road Stones” Mem. Geol. Survey
- Du Toit and Alex , L. 1929 . “A Brief Review of the Dwyka Glaciation of South Africa” 90 – 102 . vol. ii, Compte Rendu XV Internat. Geol. Congress, South Africa,; “Varve Shales”, pp. 94–95
- Fuchs , V. E. and Whittard , W. F. 1930 . “The East Greenland Pack Ice and the Significance of its Derived Shells” . Geog. Journ. , lxxvi : 419 – 425 .