658 JESSE E. HYDE 



relationships as would necessitate even brief discussion of facts 

 for and against alternate interpretations have been passed over. 



It is obviously impossible even to mention the results obtained 

 by many previous workers who have contributed, often funda- 

 mentally, to the subject. The stratigraphy of the upper part of 

 the Waverly had been studied in detail in a single small region 

 only, in central and eastern Licking County, near the center of the 

 state, and at the northern end of the area herein considered. Hicks 

 in 1878 gave a brief description of the formations of this limited 

 region and Herrick in the eighties described other subdivisions, 

 particularly with reference to the faunas. Prosser^ in 1901 reviewed 

 the work of previous writers on the stratigraphy, adopted the sub- 

 divisions made by Hicks and Herrick, applied to them the proper 

 geographical names, and described in detail some of the sections in 

 the region. Prosser's description of the sections at Newark, sub- 

 divided after Hicks and Herrick, is the one generally quoted in 

 more or less detail as representing these formations in Ohio. 



It is not surprising to find that, as a result of the changed per- 

 spective afforded by detailed work over a much wider area, the 

 subdivisions adopted by Prosser in this section must be revised. 

 In fact, both Hicks and Herrick failed to correlate correctly the 

 members across this small area in Licking County which they 

 studied in some detail. In addition, it appears that one member, 

 described as a formation, the Black Hand, is not as important 

 stratigraphically as some members that were not particularly dis- 

 tinguished by the earlier workers. 



In Table II are given the subdivisions of the Newark section 

 as stated by Prosser, and in a parallel column the ones herein adopted 

 for the same section. This will serve to show the extent to which 

 the interpretation of the section has been altered. 



It will be noted that the names Cuyahoga and Logan are retained 

 for two chief terranes, and these are extensively subdivided into 

 members. These have been recognized as two chief terranes of 



^ Jour. Geol., IX (1901), 205-31. The Quarry Run section is described on pp. 

 221-26. Other outcrops seen later led to a second description of this section with 

 certain changes in interpretation. This was published in 1904, American Geologist, 

 XXXIV, 358-61. 



