ILLUSTRATIONS 



215 



^^--7^< 



Figure 3. — Borderlands {icJiite), Geosunclines and Enihaynicnts {dotted), and 

 neutral Areas (the great central Region beticeen Geosgnclines) of 



Paleozoic Time 



A = Alexandrian embayment. 



XV — Bull. Geol. Soc. A.m., Vol. 34, 1922 



