R. S. Bassler — Deep Well at Waverly, Ohio. 21 



Thickness 

 in feet. Depth. 



chambers/', Bythocypris cylindrica, 



Trinucleus ooncentricus, Calymene cal- 



licephala, Proetus? spurlocki, and 



Nereidavus varians. From this point 



to the bottom of the well, blue shale 



fragments holding this fauna were en- 



countered, but, eliminating them, the 



remaining formations were, for the 



main part, clearly represented in the 



samples 55 1965-2020 



Unfossiliferous blue and greenish shale 



associated with the blue shale holding 



the overlying Middle Eden fauna. 



This portion probably represents the 



Lower Eden and Utica divisions 80 2020-2100 



Mohawkian: 



Trenton formation. 



Blue clay and shale, with a few frag- 

 ments of blue limestone. Zygospira 



recurvirostris, Trinucleus concentricus, 



and a species each of Rhinidictya and 



Callopora, known elsewhere from the 



Lower Trenton, were noted. At the 



base of this formation a small amount 



of glauconitic grains were present in 



the samples 125 2100-2225 



Lowville and Stones River formations. 



Each of these formations is probably 



represented, but their lithology is so 



similar that no distinction could be 



made in the samples, which consisted 



mainly of white, clayey, and dove un- 

 fossiliferous limestone with blue argil- 

 laceous limestone at the bottom 600 2225-2825 



St. Peter sandstone. 



White, saccharoidal sandstone 175 2825-3000 



Canadian. 



This portion naturally contained the 



greatest mixture of materials, but after 



excluding all the rock formations of 



the overlying beds, a few fragments 



of white dolomitic limestone remained. 



These are quite similar to the Cana- 

 dian rocks of the Appalachians, and for 



that reason and the absence of chert, 



which is more characteristic of the 



Ozarkian, as well as the stratigraphic 



position, the correlation was made as 



above. . At the very base of the well 



a few small fragments of an igneous 



rock were detected 320 3000-3320 



