TABLE OF THE PRE-CARBONIFEROU 



AS ARRANGED BY MESSRS. DAWSON, I 



1 Containing fragments of plants in the upper beds. 



' Certainly regarded as Devonian. 



> No proof observed that this group is unconformable either with the over- or under-lying rocks. 



* Certain rocks afterward separated from this group under the name of Coastal were placed in the above 

 group as Upper Devonian, because they overlie the Dadoxylon Sandstone conformably (or nearly so), and 

 underlie the Carboniferous unconforniably, while they partake of the flexures of the Devonian series. 



6 Conformably overlain by the St John group, but on lithological grounds Huronian. 

 ' No unconformability between this group and the Huronian. 



' These three groups rest unconformably on the Laurentian, Huronian, and Silurian, and were regarded as 

 Middle and Upper Devonian. 



8 Assigned to the Laurentian on lithological grounds Almost entirely conformable to the overlying 

 unquestionably Upper Devonian groups. 



9 Probably Huronian, both under- and over-lying the St. John group. 

 10 Made Upper Silurian C) on lithological and stratigraphioal prounds. 



" Entirely conformable with the Little River and Mispeck groups; not entirely so with the St. John. 



• The names in this column are to be considered as applying to all beyond, except the last two columns. 



