268 CHARLES S. PROSSER 
the localities suggested by the names of these last two divisions 
the quarry beds of No. 4 are excellently shown in the Vogel- 
meier and Haven’s quarries south of Newark and the Licking 
shales in ‘‘the gorge’ to the southeast of Haven’s quarry and 
Newark. These last two divisions of southern central Ohio were 
termed by Dr. Orton the Logan group. 
In this paper Professor Hicks states : 
The Cleveland shale has been assumed by the Ohio geologists to be equiv- 
alent to the Waverly black slate, which is undoubtedly the same as that at 
Sunbury. At the time I discovered the outcrop at Sunbury 1 supposed there 
was no doubt of the correctness of thisassumption. Now, however, Dr. New- 
berry asserts positively that there is 20 evidence, that they are identical.’ 
This is the first published statement, as far as the writer is 
informed, calling in question the correlation of the Waverly 
black slate of southern Ohio with the Cleveland shale of the 
northern part of the state; so it would appear that, as early as 
the summer of 1878, Dr. Newberry was aware of the mistake in 
his earlier correlation of these shales. Furthermore, Professor 
Hicks states that if Professor Winchell was correct in calling 
the Sunbury quarry stone the Berea grit, then ‘‘the chocolate 
shale described by President Orton as constituting the upper 
part of the Huron may be of the same age as the Bedford shales, 
as they were supposed to be by Dr. Newberry.? This appears to 
be the first published tentative identification of the Bedford shale 
in central Ohio, for in Dr. Newberry’s account of the Carbonif- 
erous system, published in 1874, he stated: 
South of the Western Reserve the Bedford shales are scarcely dis- 
tinguishable as in the central and southern portions of the state they assume 
the prevailing character of the Waverly group, and blend with the other por- 
tions of the series.3 
The writer is not aware of any published opinion of Dr. 
Newberry’s regarding the correlation of these red shales of 
Franklin county with the Bedford shale of northern Ohio. 
In August of the following year, Dr. Orton published a 
* [hid., p. 221. ? Tbid., p. 221. 
3 Rept. Geol. Surv. Ohio, Vol. Il, Pt. I, p. 92. 
