Prosser and Cumings — Lower Silurian Sections.' 629 



B 4 . The upper part of the railroad cut is composed of a dark, 7^=41 

 irregular limestone, consisting of two prominent layers which, <>n weathering, 

 tend to separate into irregular layers and these in turn to break into lumpy 

 masses. The rock weathers to a grey color and in the railroad cut seven feet 

 and two inches are shown ; = Black river limestone. 



SfCT/O/V OF CUT 



north or mew port 



No. *9,B. 



Black fiitiA) 



ffAil no AC 



>■•■ .1 



SrsrovSiZ are i/aceous i/| 11 

 (.avers or biros eye. (ft • "• 

 Transitional 1 ' rf. 



v..ij !■: 



TRAA/iir/ffKAL BlRDS£ye(t) X , 'j. 



CalC / r£ fio 



B 5 . Covered between the top of the railroad cut and the of!?^ 

 highway. 



_Z> 6 . In the bank above the highway, near the old lime-kiln, is dark 

 bine, thin-bedded, fossiliferous limestone, with shaly partings, containing 

 abundant Trenton fossils == Trenton limestone. 



