Note 16 — Chapter II · A LAND OF DUST AND ASHES (DIARBEKR AND MARDIN)
Reading edition
A multitude of basalt boulders covering quite a considerable area lie in the midst of the alluvial levels a little to the east of Nisibin. These are, of course, obviously volcanic, but it is not quite obvious how they get there: for Karaja and Nimrud, the nearest admitted craters, are each a hundred miles away.