Raymond. — Correlation of the Ordovician Strata. 



PLATE 8. 



Table showing the writer's interpretation of the sections and correlation 

 of the subdivisions of the Ordovician of Esthonia and Scandinavia with those 

 of certain localities in North America. 



The first section is from the coast at Kunda south through Wesenberg, the 

 second from the coast at Packerort near BaltLshport south through Wassalem 

 to the vicinity of Hapsal: all of these places being in Esthonia, Russia. The 

 next five are all in Sweden, and the eighth is a generalized section at Chris- 

 tiania, Norway. Of the remainder, all, except the one at Ottawa, Canada, are 

 in the United States. The one in the Champlain Valley includes strata in both 

 New York and Vermont, Chambersburg and Bellefonte are both in Pennsyl- 

 vania, the section from Kentucky is that near Lexington, and the one in 

 central New York is a combination of sections near Trenton Falls and Utica. 



