SUPPLEMENTAL REPORTs HOCKING VALLEY. 817 
Maxville Limestone—The Maxville Limestone rests upon the Way- 
erly, and its deposition marked a new era in geological history. It 
is no part of the Waverly series, and has nothing in common with the 
Productive Coal Measures. As the last statement has recently been 
questioned by my associate, President Orton, who has expressed to me 
and to others his strong belief that the Maxville Limestone is one of the 
regular Coal Measure limestones, having its true place about one hun- 
dred feet above the base of the Coal Measures, I shall be expected to give 
the reasons for the conclusions reached during the progress of the Survey, 
and which I yet firmly hold. 
The Maxville Limestone, as found at Maxville, is taken as a represent- 
ative of several similar limestone deposits in South-eastern Ohio, all of 
which group themselves, as I believe, along the same geological horizon. 
These deposits are found, beginning on the north, (1) at Newtonville, 
on the western side of Muskingum county, and extending along the 
lowest valleys into the eastern part of Perry county; (2) in the western 
part of Perry county, not far from the Fairfield county line, near the vil- 
lage of Kast Rushville; (8) at Maxville, in the south-western part of 
Perry county; (4) in Hocking county, a little below Logan, in Green 
township; (5) at Reed’s mill, near Hamden, in Vinton county; (6) in 
Hamilton township, Jackson county, on the land of Enoch Canter, Sec- 
tion 24; (7) besides these in Ohio, we find another and heavier deposit 
of this limestone in the Ohio river hills on the Kentucky side, a few 
miles above Sciotoville. All these seven localities I have carefully ex- 
amined, most of them many times, and the results of these examina- 
tions I will giveas briefly as possible. 
In the Kentucky locality last mentioned we find, on Josiah G. Merrill’s 
hill, one mile above Wheelersburg, Ohio, a section as follows: 
1. Coal Measure rocks—ore, coal, sandstone, etc....-.. --.. .-.2-- ene eee 60-70 
2. Sandy clay and shale, containing two layers of iren ere and coal 
OOP co5606 coe dou8 AOOMOS BEOO SO96 600050 605090 060060 cODORD DbCOCS 8 
3. Limestone fossiliferous, used for burning and furnaces...-.........- 31 
Ghee LRN OOS LANNY BELNORY Go5oKo caqood 260006 0059 55 BORGES Ms50 odo ais Bes 15 
My WO DENOTE Cho k 58 Gee 5O6 Sb Bde GON OO GOU0 HOGG DOOD 00 DOBRO EEE BAeE 10 
6. Waverly sandstone, with characteristic fossils ............---.------ 215 
The above section was taken when the rocks were exposed in an almost 
vertical cliff. 
Here forty-six feet of limestone were found under the Coal Measures 
and resting upon the Waverly. The fossils, so far as gathered, are 
specifically like those seen at Newtonville, Muskingum county, the most 
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