REMOVE

1. Physical
2. Dufrenoy
3. Schrader
4. Prudent, F.
5. 1937

WHAT

1. Atlas Map (1)
2. World Atlas (1)

WHERE

1. Egypt (1)
2. Northeast Africa (1)
3. Oman (1)
4. Saudi Arabia (1)
5. Somalia (1)

WHO

1. Berghaus, Herm. (1)
2. Eberhardt, H. (1)
3. Justus Perthus (1)
4. Kramer, A. (1)
5. Kuhn, E. (1)
6. Poppey, C. (1)
7. Stieler, Adolf (1)

WHEN

1. 1881 (1)