lO HULI.EIIN OF THF, 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. Neitlier 

 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 rec^jgnition. They are: the bases of two 

 kinds of crinoids, Favosites Niagarensis. Rhinopora verrucosa, a species 

 of FenesfclLi, Ortliis biforatx var. lynx, O/'this fansta, aid several spe- 

 cies of cup cornls of unknown affinities. 



Browns Quarry. — 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 C'linton 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 sol 1 for marble dust and 

 subserves its purpose very well. A hot lime is barned from the rock 

 which formerly was in large demand in neighboring towns, and is even 

 now used wMiere 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 Rhynchonclla, are rare 'Y\\t trilobites are well represented 

 and several new species are found. Of these Ascidaspis Ortoni, and 

 a Ceraurus are the most prominent FJchas breviceps and Ptt'rinea brisa 

 are very common here, while in the Soldiers' Home quarries they are 

 very rare. Heniitrypa 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 



