(i) 100 



Palteontologia Sinica 



Ser B. 



-Boundaries of Provinces o Railroads and Stations 



Ordovician Localities o Other important Cities 



Great Wall 



to tfo 



Scale of Miles 



Fig. 20. Map of North-eastern China, showing the localities where Ordovician fossils have lieen found. 



(See the list on the preceding page.) 



