1. Dawson, JW. 1893. Notes on useful and ornamental stones of ancient EgyptJTVI 26(104):265-291. CELD ID 15387.
Notes on useful and ornamental stones of ancient Egypt
2. Geikie, J. 1893. The glacial period and the earth-movement-hypothesisJTVI 26(104):221-264. CELD ID 15389.
The glacial period and the earth-movement-hypothesis