220 L. E.. Hicks— Waverly Group in Central Ohio. 
scales and teeth of fishes. But one outcrop of it is known in 
elaware County, and that was revealed only by a systematic 
search of a day and a half. This discovery, which I made in 
May, is recorded in the July number of this Journal. An 
equally diligent search would, I am confident, result in tracing 
the same stratum much farther north; and thus the identity of 
one at least of the Waverly beds in southern, central and 
northern Ohio, would be established beyond a peradventure. 
The last member, No. 1, consists of shaly sandstone, com- 
pact sandstone (somewhat calcareous) and at the bottom a few 
feet of alternate shales and siliceous limestones. The calcare- 
ous matter is abundant enough to charge the water percolat- 
ing through the rock and form extensive deposits of travertine 
on the banks of Rattlesnake and Walnut Creeks. The forest . 
trees drop their leaves upon the surface of this travertine; 
they are caught in the petrifying mass and leave their models 
exact to the minutest detail. I have collected many beautiful 
specimens of oak, chestnut, maple and beech leaves from this 
locality. 
The rock which furnishes the material for the travertine is 
itself non-fossiliferous, at least as regards the remains of animals. 
It contains two species of sea-weeds distinguished by their posi- 
tion in the stone, one standing vertical, the other lying flat. 
The Portage sandstone of New York has two species which are 
distinguished in the same way. They belong, however, to 
different horizons, the vertical one being found in the upper 
beds only, and thus furnishing a basis of subdivision. In the 
ey no difference in their vertical distribution has been 
observed. 
The quarries in the lower Waverly at Sunbury, Delaware 
County, furnish an excellent quality and inexhaustible quantity 
of flagging and building stone. Ripple marks are so abundant 
that thousands of feet of flagging have been sold, every slab of 
which would be a good cabinet specimen. 
Near the junction of No. 1 with the Huron shale is a stratum 
of Calciferous sandrock | ing in huge, rough, concretionary 
m 2 low this are blue shales interstratified with thin 
layers of siliceous limestone, the lowest of which rests directly 
upon the surface of the Huron. Here we reach an unmistakable 
Devonian stratum, and our task of enumerating and describing 
the component members of the Waverly group is completed. 
It remains to discuss the stratigraphical relations and names 
of the beds described above, which is by no means the easiest 
part of my undertaking. : 
Let us first inquire what is the relation of the several mem- 
bers constituting the Waverly in central Ohio to those in Dr. 
Newberry’s section at Cleveland, which is as follows: 
