IV. 



COMMUNICATIONS. 



I. THE WAVERLY GROUP. 



W. F. Cooper. 



In continuing the list of articles on the Waverly of Ohio, under 

 the direction of Prof. Herrick, the writer has endeavored to make the 

 work as complete as possible, and it is hoped that the following pages 

 may throw some light on the relation of the different horizons of the 

 Waverly as exposed in Central and Northern Ohio. The identification 

 of horizons has been made on organic evidence alone, except when 

 conglomerates I and II were exposed, when it would be impossible to 

 misconstrue the relations. As has been stated, the object of the sur- 

 vey was to ascertain the relation of the different subdivisions of the 

 Waverly in Central and Northern Ohio. With that end in view, sec- 

 tions were made in most of the counties in this formation from the 

 southern part of Ashland County to Cuyahoga Falls, Summit County. 

 Over considerable areas it was impossible to trace the transition owing 

 to the lack of high vertical sections, but most of the main facts illus- 

 trating the secjuence were discovered. 



In giving the results, we desire to acknowledge indebtedness to 

 Prof. Pike of (iarretsville. Portage County, and Mr. J. E. Woodland 

 of Wooster, for valuable information respecting localities. Before giv- 



