20 GEOLOGY OF OHIO. 
vanced views in regard to the relations of the formation which seem to 
require a few words of comment. On page 97, note of Mr. Carll’s report, 
on the Venango county oil district, Professor Lesley says: 
‘We have not used the general term Waverly sandstone formation of the Ohio geolo- 
gists because of the controversies to which it has given rise, and because its subdivisions 
correspond to our Pennsylvania formations.” 
These considerations seem to us insufficient, since the controversies 
alluded to resulted in demonstrating that the Waverly was a distinct 
and important formation in Ohio and other Western States, and in the 
accurate determination of its place and age; also, because its subdivis- 
ions do not correspond to the Pennsylvania formations, and it was named 
before they were. Hence the law of priority, the truth of science, and a 
proper regard for the courtesies of life, require the Waverly to be recog- 
nized as such by any one who writes about the geology of Ohio. On page 
sixty-seven of the report referred to, he says: | 
‘‘Dr. Newberry makes the Cuyahoga shale to be the uppermost member of the Wa- 
verly Group (his sub-Carboniferous system consisting of Cuyahoga shale, Berea grit, Bed- 
ford shale, and Cleveland shale—that is, all from the Conglomerate down to the Erie 
shale.) The geology of Pennsylvania opposes the adoption of this name, for reasons 
already alluded to and to be fully stated hereafter. The imperfect series of rocks at 
Cleveland afford no opportunity for so important a classification ; but the name Cuya- 
hoga shale will stand, for it designates a formation extending eastward with an ever 
growing thickness, until on the Schuylkill River it becomes 3,000 feet thick.” 
In answer to this paragraph, it may be said: 
1. That the term Waverly Group was not coined by, Die Newberry, but 
was conferred by the first Geological Corps of Ohio on the Waverly sand _ 
stone series, as exposed about Waverly, in southern Ohio. 
2. The subdivisions of the Waverly Group established by Dr. New- 
berry, were not founded on the exposures of the Waverly rocks at Cleve 
land, but were proposed after a careful study of the formation throughout 
northern Ohio, where these subdivisions were found to prevail over 
twelve counties and along a line of outcrop of more than 150 miles. 
3. The section of the Waverly Group at Cleveland, is one of the most 
complete in Ohio, and if the classification adopted had been copied from 
this section, it would have fairly represented all the different elements 
which compose the Waverly throughout the Western Reserve. | 
4, Jt has nowhere been claimed in the reports of the Ohio Survey, 
that these subdivisions of the Waverly could be recognized in other 
States, or in other parts of Ohio than the district referred to; indeed, it 
was clearly shown in the description of the Waverly already published, 
that in central and southern Ohio the lithological characters of the group 
