[Footnote 78: MAYER-EYMAR, _Quelques mots sur les nouvelles recherches relatives au Ligurien et au Tongrien d’Egypte_. Bull. de l’Inst. Egypt. (3) N. 4, 1894. Mayer-Eymar’s division of the lower beds into _Ligurien inférieur_ and _Ligurien supérieur_ is hardly convincing, especially as no fossils were found by that observer. The correlation of strata in widely separate areas by their lithological similarity is at least open to question, especially with beds of this type, which can indeed be exactly matched again and again at many levels in the same vertical succession. His diagnosis of the beds immediately below the basalt as _Tongrien inférieur_, rests, however, on firmer grounds, as this basalt sheet can be traced across the desert to beyond the latitude of Cairo, and is probably everywhere of approximately the same age.] [Footnote 79: SCHWEINFURTH, op. cit., _Reise in das Depression Gebiet_, etc.) p. 41.] [Footnote 80: BEADNELL, _The Cretaceous Region of Abu Roash, near the Pyramids of Giza_. Geol. Survey, Egypt, Report 1900, Pt. II. 1902, p. 44.] [Footnote 81: _Zur Geologie Aegypten_, Pt. II, p. 458; _Die Geschichte des Nil-Stroms in der Tertiär und Quartärperiode_, etc., Z. d. Ges. f. Erdk. Z. Berlin, 1902, Tafel 10.] [Footnote 82: BEADNELL, _Découvertes Géologiques Récentes dans la Vallée du Nil et le Désert Libyen_, Compte rendu. VIIIe Congr. Géol. Internat. 1900, Paris, 1901, p. [Blank]; also BALL and BEADNELL, _Baharia Oasis: Its Topography and Geology_; Survey Depart. P.W.M. report. Cairo. 1903, pp. 61-62.] [Footnote 83: _Correlations between Tertiary Mammal Horizons of Europe and America_, Annals N.Y. Acad. Sci., Vol. XIII, No. 1, July 21, 1900, pp. 1-72.] [Footnote 84: Compare _Afrika als Entstehungszentrum für Säugetiere_, Stromer, Zeitschr. d. Deutsch. Geolog. Gesellsch. Jahr 1903. Also _Betrachtungen über die Geologische geschichte Aethiopiens_, do. do., 1901.] [Footnote 85: The locality has been briefly examined by Dr. Blanckenhorn and more recently by Mr. T. Barron, who was accompanied by Dr. Andrews; the writer spent a few days collecting in the neighbourhood in April, 1903.] [Footnote 86: Approximately 10 metres above sea-level.] [Footnote 87: It is worth recording here that a single worn specimen of _Chicoreus anguliferus_, Lam., was found on the desert surface in the neighbourhood of the bone-pits and at about the level of the highest gravel terrace. This determination was made by Bullen Newton, who informs me the species occurs in the marine Pleistocene beach deposits of the Red Sea.] [Footnote 88: BEADNELL, _Découvertes Géologiques Récentes dans la Vallée du Nil et le Désert Libyen_, VIIIe Congrès Géol. Intern. 1900. Paris 1901, pp. 25-27.]