Review of the New York Gteological Reports. 57 
Arr. VIII— Review of the New York Geological Reports. 
(Continued from Vol. i, Second Series, p- 70.) 
formed by the so-called : 
Marcellus Shale. (Lower: of F. 8 of Pennsylvania and 
ed in the region of the Utica slate. The lower division of the 
vision of the group. PRE : 
_ It is inferred, both from the extremely fine sediment of which 
the Marcellus shale is composed and the preservation of some of 
Sxconp Serizs, Vol. Ill, No. 7.—Jan., 1847. 8 
