MAP
NOTES
[1] See later.
[2] Streams which rise in a tug, flow for a short distance along it and then disappear beneath the sand.
[3] In the Gadabursi district.
[4] See footnote to Contents.
[5] In view of the great apparent thickness of the slates and the high angle of dip, careful mapping may ultimately show the series to have an “isoclinal” structure.
[6] See Gregory: The Rift Valleys and Geology of East Africa, p. 41.
[7] Gregory: Geol. Mag. Vol. III., 1896, pp. 289-296.
[8] Gregory: loc. cit.
[9] 2,000 feet according to Wyllie and Smellie
[10] The name “Daban Series” was given to these rocks by Drs. Wyllie and Smellie, who first recognized them.
[11] Gregory: Geol. Mag. 1896, loc. cit.
[12] Mineral Survey of Southern Nigeria 1908-09, p. 19.
[13] Now Sir H. A. Byatt.
[14] Another, however, is stated by Wyllie and Smellie to have been found by them under the Jurassic at Bihen Gaha Pass.
[15] Bull. Imper. Instit. Vol. IX., 1911, p. 39.
[16] The writer of the article referred to.
[17] England.
[18] 1920, No. 97, p. 32.
[19] Together equivalent to 8.42 percent of metallic manganese.
[20] Together equivalent to 8.42 percent of metallic manganese.
[21] In the sand from the bank of Amud Tug near Borama, assay returns gave 1 dwt. of silver per ton (see Gold).
[22] On the Guban.
[23] In default of other private enterprise. One firm has already expressed an interest in the deposits.
