OF DENISON UNIVERSITY. 
13 
feet above the T. & O. C. R. R. track at the reservoir, by combining 
various exposures a thickness for the Waverly of over 100 feet at least 
can be made out. Thornville is about 180 feet higher than the rail- 
road, and the Waverly shales west of Amsterdam are ten or twenty 
feet higher. A range of hills half a mile to the south of the National 
Road, rise to 280 feet and expose at least 85 feet of coal-measure sand- 
stone and conglomerate, here of a white color and full of Lepidoden- 
dron stems and other plants. The base of the sandstone is marked 
by a line of springs. It is not now possible to compare these eleva- 
tions with those farther north, but evidently the relations are precisely 
the same. Although a sub-carboniferous limestone is marked on the map 
published by the Ohio Geological Survey, no indications of its existence 
were seen in Licking county. On the other hand, the Waverly seems 
to extend to the base of the coal-measures exactly as elsewhere. 
Passing east from Newark many exposures of the Waverly are 
found along Licking river, but the most characteristic exposure is in a 
large quarry (the largest in the country), in the southeastern corner of 
Newark township. It is possible to trace the whole section from Lick- 
ing river to the top of Bald Hill, in the southwest corner of Madison. 
The results of our study are embodied in the section accompanying. 
