lO 
BULLEl'IN OF THE LABORATORIES 
applicable, but that somewhere or other any dividing line is apt to 
fail. 
Geographical Paleontology. 
Reed's Hill, — East of Fairfield, a village near Osborn, is a hill 
that presents a fair exposure of Clinton rocks. There are about eight 
feet of it, worked for building stone, of an inferior quality. Neither 
the line of junction with the higher nor the lower strata was observed 
here. The stone is of a pinkish, often rose-red color, and is com- 
posed of tiny pieces of organic matter, preserving very few fossils in 
a condition admitting ready recognition. They are: the bases of two 
kinds of crinoids, Favosites Niaga?'ejisis, Rliinopom verrucosa,, a species 
of Fenestella, OrlJiis blforata var. lynx, Orthis fausta, aid several spe- 
cies of cup corals of unknown affinities. 
Browns Quarcy. — Two and a half miles west of New Carlisle and 
half a mile south of Brown’s Station, on the I. B. and W. R. R., is a 
quarry presenting a fine exposure of the Clinton Group. The super- 
posed strata of the Niagara Group were not noticed at this locality, 
although exposures are said to be not far distant. The Clinton rock 
is of a peculiar white color, which when ground gives it an appearance 
much like that of chalk. It is comparatively soft, so that the fossils 
contained are readily dug from the rocks, but they are also easily in- 
jured, and not being very translucent they do not admit of good mi- 
croscopical sections. The ground up rock is sold for marble dust and 
subserves its purpose very well. A hot lime is burned from the rock 
which formerly was in large demand in neighboring towns, and is even 
now u-sed where the management of hot limes is understood. This 
locality is of almost equal value with that of the Soldiers’ Home Quar- 
ries, from a paleontological point of view. Brachiopods with the ex- 
ception of Rhynchonella, are rare. The trilobites are well represented 
and several new species are found. Of these Ascidaspis Orto7ti, and 
a Ceraiirus are the most prominent. Lichas bt'eviceps and Pte.rinea brisa 
are very common here, while in the Soldiers’ Home quarries they are 
^ very rare. Hemitrypa Ulrichi is common, also various species of cup 
corals. Crinoid buttons, which form such a constant feature else- 
where are almost unknown here. Cephalopods of different genera are 
quite common. 
Ludlow Falls. — Most of the Clinton exposures were half covered 
