Series B, 



Vol. I. Fascicle 1. 



PAL/EONTOLOGIA SINICA. 



Editors: 

 V. K. Ting and W. H. Wong 



Ordovician Fossils 



of 



North China. 



BY 



AMADEUS W. GRABAU S. D. 



Palaeontologist to the Survey and Professor of Palteontology 



in the National University Peking. 



With Plates I IX and 20 Text figures 



f 



09'^^ 



Published hy the fteological Survey of China 

 Peking 1922. 



I l,;RAI;V 



