DARKE COUNTY. Hid 
bearing about the same lithological features as the Guelph beds described 
from other counties, viz., of a light buff color, porous or spongy, and 
fragile. The upper portion in particular is so fragile or sandy as to crum- 
ble up like chalk, and is composed almost entirely of crinoidal stems 
(Caryocrinus ornatus). Noregular planes of stratification appear, the rock 
breaking into thin, irregular slabs. Lower down, this formation is of a 
darker yellow color, firm, massive, and contains innumerable fine casts of 
crinotdea. 
A second exposure of this formation occurs at the quarries of Dr. I. N. 
Gard, about a mile and a half southwest of Greenville, south-east quarter, 
section 33, Greenville township. The beds are worked in two places, 
known as the “old” and ‘‘ new” quarries, and lie about fifty yards apart. 
In appearance the rock does not differ materially from that of Bierley’s, 
but is much harder and totally different in fossils contents, two or three 
species only being common to both. The upper stratum is especially to 
be noticed as being of a compact crystalline s‘ructure, and also consider- 
-ably folded. Moreover it shows a perceptible dip toward the south and 
east. 
The section is as follows: 
mM, Vik 
VeWlow Gly GING! NORM coabas boboce Ga05 bonbe5 HaG505 HODUO Da SOSHNe sonGaes 0 6 
Dar red clay, very compact, calcareous and interspersed with many 
limestone Welle stearic sae carne ESAS SC OU SCOOT Dem Cec cer 2 0 
Thick stratum with definite fracture, of dark yellow or bluish cast, com- 
pact crystalline; few fossils but well preserved; glacial strize south 5° 
Thick, massive, porous, in many places soft and sandy, light buff in 
color, and containing, mamy fine) casts..---2 -.sst-<-e=-s4- -ssecse cee - 6 0 
MO LalgexpOsUUo mere sec eee aimee Sc mmny ios talon ten cent lara Sree 11 3 
In Wayne township south-west quarter, section 32, just below the mill 
at Webster, the Guelph beds are again exposed. Here Stillwater has cut 
down to its old bed, revealing a section on the right of four or five feet. 
In character it corresponds most nearly with that at Gard’s. It is suffi- 
ciently hard for building purposes, but is too irregular massive to be: 
practicably worked. However, it is easily accessible and would undoubt- 
edly furnish an excellent quality of lime. The banks of the creek over- 
lying the rock consist of three or four feet of clay, colored dark red from 
the presence of iron, and partaking much of the calcareousness of the 
rock. Beneath this deposit several sulphur springs course out upon the 
surface of the rock into the creek. Some fragments revealed casts of 
Pentamerus pergibbosus, Favosites Niagarensis, and one or two species of Or- 
oo 
