30 THE ROYAL SOCIETY OF CANADA 



— the formational subdivision of the strata and correlation with the 

 better known American members. 



The first of these more recent additions was a description of 

 Devonian fossils by the present writer published by the Ontario 

 Bureau of Mines in 1904. After a considerable interval appeared 

 Miller's "District of Patricia" in 1912 — a comprehensive synopsis 

 of the information available for the region. In 1913 J. B. Tyrrell 

 published in the Reports of the Bureau of Mines of Ontario an account 

 of the geology of Patricia: this was accompanied by a report by the 

 present writer on the Palaeozoic fossils, which was afterwards repro- 

 duced in greater detail by the Royal Canadian Institute. 



In 1919 M. Y. Williams reported on the Matagami and Abitibi 

 rivers and published the first attempt to correlate closely the strata 

 as follows :^ — 



Williams' table of the palaeozoic of Hudson bay 



Devonian Portage 



Genesee (?) 



Tully 



Hamilton 



Onondaga 

 Silurian Salina 



Queenston 

 Ordovician Basal Clastics 



In 1920 the same author reporting on a region farther north re- 

 cognized Onondaga, Salina, Guelph, and Niagara strata. 



A more comprehensive account and one indicating fully our 

 present knowledge of the stratigraphy appeared in the Bulletins of 

 the Geographical Society of America, 1919, by the joint authors, 

 T. E. Savage and Francis M. Van Tuyl. This publication contains 

 full faunal lists and the following stratigraphie classification, which is 

 much in advance of any hitherto published : — • 



savage and van tuyl's table of the palaeozoic 



of hudson bay 



Upper Devonian 



Long Rapids shale 



Abitibi River limestone 

 Middle Devonian 



Sextant sandstones and shales 



