OF DENISON UNIVERSITY. 
107 
dium pulchellum,Nucula iowensis, Sanguinolites rigidus.Spathella ven- 
tricosa, Mytilarca fibristriata (below), Dexiobia ovata, Syringothyris 
sp., Edmondia burlingtonensis, Goniatites lyoni, Murchisonia quadri- 
cincta, Bellerophon cyrtolites, Productus arcuatus, P. Sliumardianus, 
Chonetes logani,_etc. 
3. The Waverly Shale. ^ 
This term is given to forty feet of very fossiliferoiis shale below 
conglomerate I, and perhaps most closely related to our division II. 
The fossils are generally identical with Michigan species, such as, 
Palaeoneilo attenuata, P. elliptica, Orthonota rectidorsalis, Sanguino- 
lites unioniformis, etc. This section contains a number of Kinder- 
hook species with a sprinkling of those of the preceeding horizons. 
We have for convenience classified it with the Berea or Transition 
series. 
4. The Berea Shale. 
This is equivalent to the Cuyahoga shales of Orton minus the 
above mentioned shale. Instead of being as Prof. Orton states almost 
unfossiliferous, this division is one of the most interesting in the state, 
preserving its fossils, thanks to the calcareous concretions, in perfect 
condition. The species are mostly new to science but have analogies 
with Chemung and Hamilton forms. The bryozoa have not furnished 
conclusive evidence, most of them being new. The upper thirty or 
forty feet contain the concretions with three or four new trilobites, 
and Spirifer marionensis, Fenestella herrickana, Lyriopecten ? cancel- 
latus, Pterinopecten cariniferus, Streblopteria fragilis, Promacra ? trun- 
cata, etc., are characteristic species. Traces of the same fauna can be 
followed downward over 100 feet. The lower part of this shale to- 
the Berea contains a fauna as yet unstudied. The difficulty of secur- 
ing specimens is extreme. Several days labor during which the shale 
was systematically examined bit by bit, inch by inch, have yielded 
about half a dozen species in obscure fragments. A spirifer apparent- 
ly^ intermediate between Sp. marionensis and Sp. disjunctus, a Chon- 
etes like C. scitula, a Palaeoneilo like P. sulcatina, a Schizodus some- 
what elik S. medinaensis, a fine Pleurotomaria, Palaeoneilo consimilis 
and a Proetus being the entire find. The patient student will perhaps se- 
cure added material from exposures of this horizon one mile east of 
Harlam and four miles west of Jersey. 
5. The Berea Grit. 
The thickness of this horizon varies considerably. The grit proper 
