[24]Golénischeff names this place Abu Greïa, a name which he remarks is the same as that of a station near Berenice. Garia Abu Medrik is the name given to it by the Arab guides accompanying the Survey expeditions.

[25]Floyer, Etude sur le Nord Etbai. Cairo, 1893.

[26]Further Routes in the Eastern Desert of Egypt. Geog. Journal. London, 1893. pp. 408-431.

[27]Notes on the Geology of the Northern Etbai. Quart. Journal Geol. Soc. London, 1892. pp. 576-582.

[28]Professor Hull, in the discussion on Floyer’s paper, suggested, even in the absence of specimens, that Floyer’s “blue clay” was really a decomposed Archæan schist. My observations have proved the sagacity of this suggestion.

[29]Bent, A visit to the Northern Sudan. Geogr. Journal. London. Vol. VIII (1896), pp. 335-353.

[30]Macalister, The Emerald Mines of Northern Etbai. Geog. Journal. London. Vol. XVI (1900), pp. 537-549.

[31]Berichte der Commission für Oceanographische Forschungen. Sechste Reihe, Wien 1898, and Siebente Reihe, Wien, 1901.

[32]See [p. 65.]