618 GEOLOGY OF OHIO. 
No. 10 af 
Carbonate-+of WMO. <2) 2/22 Ie Ae SN IR on ate aegis ce NU le a 72.82 
CANNONS) OLE UNEP ONT cacao ocae.de Sono dHodsbedod cusodo caus ae boee yee eer 5.99 
PAIEODCAD COR Mee LG Bb 0) MPa Serene pe aU iis ie) Cs ae i ea, 2.80 
SUrcrous Wathen sles ere era ere eee eee ee ae Pa a oC 16.06 
Organic matter ...... JeaiGie lois leis sitieta le lclae rears e oea yee mre ra pret nents tye nh Ac ana eterna 1.75 
99.42 
No. 11 
Carbonate: of Time | ests peri uae 2 GARI GUE Nat ee LM Le Why ESE RHA () 
Carbonate of Magn esiayc< cee sees se seats eee Cee ere aI gue ec 1.96 
Allamin a and iro mys soa. Sse ehecece les ore eles ROR eee ope ae da 3.80 
Siliciouspm atten e eeeieee eer were eee pe Oa, SPN eL LINE CL eC ey eee 5.40 
99.56 
No. 12 shows the character of the Delaware stone in the northern part 
of the county. The sample analyzed was the blue building stone of 
Ferris’s quarry, in Perry township. It doubtless agrees with much of 
the Delaware stone proper in composition, as it does in general appear- 
ance. 
No. 12 
@arbonateok Mime rt. oo oe sei seid se reveict cere mic ereyare ate een oe pear eee 57.09 
Carbonatesofemaon eslatcmecisas ae eee ce aa een ce eke eee eee eee eum ara 
ANTAL RAIN OMITOM soe rereih c beavetccie ates cha Sena cee ne a is BS yee a en pe ote mance nea 2:97 
SUWNCLOMSHIM ALOR Ao aces See rarer es oo le Sek eles ane SPR ee eee eae 5130 
OrpanicimMatlereewmenc cls see le Liki ere oh ee ere 5 ie eet eee aa 88 
99.41 
The analyses given above were all executed for the Geological Survey 
Numbers 2 and 3 were furnished by Prof. Wormley; numbers 5, 6, 7, and 
8 were made by Dr. C. L. Mees, now of Louisville, Kentucky; and num- 
bers 1, 4, 9, 10, 11, and 12 were executed by Mr. C. C. Howard, in the 
laboratory of the Ohio Agricultural and Mechanical Coilege. 3 
Application will be made of some of these analyses in treating of the 
economical geology of the formation. 
3. Paleontology.—The Corniferous limestone is a great store-house of 
fossils. Almost all limestones are of organic origin, but this shows its 
origin in every layer. The substance of the rock is often composed of 
the exquisitely preserved fabrics of the life of the seas of this distant 
date. Sea-weeds and corals, chambered and univalve shells, bivalves and 
brachiopods, were strewn indiscriminately upon the floor of this ancient 
sea, and built it up thus by slow additions. Vast periods of time were 
used in this work. The species that flourished when the earlier beds 
were being deposited, had their day, and in many instances, gradually 
disappeared long before the series was completed. New forms came in 
from time to time, some of which are identical with species found in 
