: Feet oe Feet 
Ohio. . Tilinois. thick 
thick. 
Sandstone 30/Brown and red magic - 18 
Shale and nodular iron ore re ( wee Sandstone, - tiaras | 
table fossils), —- 30/Siliceous a ie ie OB 
Coal —— ah Osan - 30/Coal, Sie Bey 
yas sa - - - 20/Clay, - - - - 6 
Lim c, fosliferou, - 3 Sandstone, : - - 20 
Shale, eikban d, Bituminous shale - - 27 
e, thin coal and note - 20/Coal, - - - 6 
i 15\Clay, - . > 5 
Sandstone, vegetable hath, - 40\Limestone, - 11 
am _— i is 30/Greyish sandy shale, often sand- 
- 3] stone, - 66 
50\Coal, - - - - 4 
Gouploaieats (marine foasils in |Clay, t - - - - 2 
Pa.), - - - - 100\Shale, - - 5° 
Total, - . i 800 —— |Basal sandstone,” - - - = 
Total, - - - 400 
I be 
the we i Rata formation No. x11 of Prof. Rogers. This 
rock in McKean Co., Pa., and Alleghany and Cattaraugus Cos., 
-, contains, besides others, the following species of marine 
fossils, viz., Orthoceras 3 species, Murchisonia 2 species, Sate 
tomaria 1 ye Myalina 1 do., Avicula 1 do., Lyonsia 3 do., 
and Orthis oO. 
In ee acording to Aas ia phate Bea aa af marine fauna 
it aboun idoden an nocarpa. 
Indiana, Cdlamites (Lyell). Iilinois, on the et te hi tb 
as 
. worn character of the specimens, forbid their aes ntecwnae 
and identification of species; but their general characteristi 
gathered as ef are from so wide localities, forbids their sepa 
ration from eac er. ; 
So far as the floral testimony extends, the basal sandstones of 3 
the northwest portion of the Appalachian and northern of the 
Illinois are identical. 
The roof shale of the first bed of coal, in the ascending series, 
bo in Ohio and ihnee., is very rich in’ its flora. Nothing 
uu chness and variety of the fretted roof 
yahoga Falls 
of thier vein, as seen in shoes mines at Cu. Falls and Chip- 
pewa, Ohio, or at sagt Ti. 
To Dr. Newberry we a indebted for the development and 
description of the new ind corleting of the old genera an 
COND SERIES, Vot. XXVI, No. 76.—-JULY, 1858. 
10 
