DAKKE COUNTY. 513 



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 

 (Caryocrinusornatus). No regular 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 

 crinoidea. 



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 structure, and also consider- 

 ably folded. Moreover it shows a perceptible dip toward the south and 

 east. 



The section is as follows : 



FT. IN. 



Yellow clay and loam 6 



Dark red clay, very compact, calcareous and interspersed with many 

 limestone pebbles ^ , 2 



Thick stratum with deiinite fracture, of dark yellow or bluish cast, com- 

 pact crystalline; few fossils but well preserved; glacial striae south 5° 

 west 2 9 



Thick, massive, porous, in many places soft and sandy, light huff in 

 color, and containing many fine casts 6 



Total exposure 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 ojat 

 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 sufii- 

 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 

 Pentamerug pergibbosus, Favosites Niagarensis, and one or two species of Or- 



3S 



