Bui. 180, Bureau of Plant Industry, U. S. Dept. of Agriculture. 



Plate I. 







Fig. 1 .— Kasr-Ezzuweira, Showing the Effects of Erosion on the "Lissan" Strata, 

 Laying Bare the Underlying Rocks. 



Fig. 2.— View of Safed. On the Left is the Rocky Mountain, Destitute of Forest 

 Vegetation, where Triticum dicoccum dicoccoides was Found. 



