SUPPLEMENTAL REPORT—-HOCKING VALLEY. 819 
C. R. R.) and near the “Old Fort,” built by the Mound-builders. Below 
the railroad bridge the limestone thins out and di:appears, and we find 
over the Waverly four feet of blue shales with iron ore, and over the 
shale a hard sandstone with coal plants. The relation of the limestone 
to the Waverly is unmistakable, and the sections were taken where the 
banks are vertical. 
A few miles below Logan, on the land of James Tannihill, Section 28, 
Green township, Hocking county, is another deposit of limestone belong- 
‘ing to the same horizontal series. It has been largely quarried at this 
point for quicklime and for furnace flux. The bottom was not seen, but 
about nine feet were measured, the upper two feet two inches being of 
buff color. Above are two feet seven inches of clay shale containing at 
the top about fifteen inches of limestone, with a layer of nodules of ore 
over it. Quartz pebbles were seen in this ore, a feeble representation of 
the’Coal Measures’ Conglomerate. The Logan sandstone, or Upper Waver- 
ly, which lies in the lower part of all the hills along the river, must neces- 
sarily pass closely under this limestone, and I have no doubt that search 
will reveal exposures along the outcrop of this apparently limited deposit 
of limestone, where both the limestone and the Waverly will appear in 
vertical section in close contact, or separated by only a few feet of shale. 
We now reach, in our progress to the northeast, the limestone at Max- 
ville and vicinity, in Perry county, the location which gave the name 
to the formation. On the land of David Hardy, near Maxville, the lime- 
stone measured eight feet eight inches in thickness, the upper three feet 
two inches being of buff color, and the lower five feet six inches in lay- 
ers of hard bluish-gray stone. The five feet immediately below the lime- 
stone were not seen, but below this small interval, or five feet beneath the 
Manville limestone, comes vn the Logan or Upper Waverly sandstone with its usual 
fucotds and shells. Hight feet of this sandstone were seen above the bed 
of the stream. At this exposure two feet of sandstone were seen direcily 
over the limestone, but at other points there is ore on the limestone with 
ometimes black shale over the ore. In some places the limestone is 
thicker than at the Hardy exposure, especially in its upper buff portion. 
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Lhe latter portion is upypenMenend yy more foss au iferous than the other, and is 
t. et Vai rq ROL Rn VR LAA DS Sik 
often singularly mottled with dark blu blotch: s. The limestone be- 
aves Re x BANS. [heal LLM HR tS jaye Pex Beets ag iy 0h NC RP a 
low Logan Esai bited a similarly mottied aspect. Following this lime- 
4 SISA LTR SPU Ler nlirg TACIT TRIE Via Nee A ant pide Stee Peer Tara Te STEN 
stone from Maxville down the Little Monday Creek to ihe Winona ur- 
HacemrcaGiidcachimideveloument ofiithdamethe pointof the hill. near 
Hace, We ind a DID GSvVeELloG@imMeny OL LG tat LAS PVALLy a) POS WAT Heal C 
furnace. Here above it 18 an iron ¢ Le. WTC 1s Grint di for, and ave vy 
thir fe me} Bu E ee Samy Los an Stl Patseast : 4 44 po ean JE) Aran SE r 
thin seam of coal three or four feet AIS Mer. At this piace there W. 1G 
= 
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SHASTA OF graw thine beatow the limestone. bit @ few } aistan Tf 
Gx VOUS UG OL amy UNL S HMelow oC Llines,one, OUL @& ré UA LOU f MEU (6 wal 
at a Cc 
