OF DENISON UNIVERSITY. 1 7 



into Still greater prominence the close relation, both faunal and liiho- 

 logical between the Waverly and the carboniferous. The general con- 

 clusions formulated are as follows: "That all its rich fauna is of a 

 decidedly carboniferous type ; second, that it includes a number of 

 species characteristic of the lower carboniferous rocks of Kentucky, 

 Tennessee, Illinois. Iowa, and Michigan ; third, that it furnishes at 

 nearly all of its fossiliferous localities certain species which are also 

 •common in the coal measures above ; fourth, that our collections made 

 include no Chemung or Portage species ; fifth, that it is continuous 

 -with the "vespertine" and " umbral " rocks of Pennsylvania.'' 

 The subdivisions of the Waverly are as follows : 



The conglomerate (coal meas ) 



1. Cuyahoga shale 150-250 ft. 



2. Berea Grit ^"0 ft. 



3. Bedford shale 7.> ft- 



4. Cleveland shale 21-ro ft. 



Erie shale (Chemung.) 



It is to be noted here that what has since been called the Logan 

 -sandstone, which makes up the bulk of the exposed part of the forma- 

 tion south of the middle of the state is here omitted (probably as be- 

 ing identical with the Berea. ) But doubdess nearly nil the fossii><, on 

 which the judgment pronounced as to the carboniferous age of the 

 series was founded, were actually derived from this part, i. e. our series 

 III. The Cuyahoga or the upper part of it added to this habitus re- 

 remarkably. The careful study of the Cuyahoga will, I think, surprise 

 geologists. If not actually a part of the coal-measure scriev it has 

 •curious premonitory symj)toms. 



Prof. E. \V. Claypole, who incidentally discusses this nueslion in 

 ^ paper read in 1884, gives the following section of the Waverly : 



Conglomerate (coal meas.) 



1. Logan Group (of southern Ohio.) 



2. Cuyahoga shale. 



3. Berea shale. 



4. Berea Grit — Waverly sandstone. 

 :^. Bedford shale. 



6. Cleveland shale. 



This would be adapted to our own view by transpoMn:; N.'^ i 

 .and 2, or by intercalating No. 1 somewhere in No. 2. 



