- In the latter case, indeed, river sediment might be very useful as a manure, but it could hardly be needed as a soil; for the growth of vegetation in the wadies of the Sinaitic Peninsula shows that the disintegrated rock of its mountains requires only water to stimulate it to considerable productiveness. - "The Earth as Modified by Human Action", George P. Marsh.
- True, even now, a few narrow valleys, or wadies, show signs of great fertility, but the greater part is quite uninviting. - "My Three Days in Gilead", Elmer Ulysses Hoenshal.
- I can tell you it was a gloomy place, as barren and deserted as some of those Arabian wadies that you have been describing to me. - "The Moon Metal", Garrett P. Serviss.