430 
PROCEEDINGS OF THE ACADEMY OF 
Localities. —In the Marshall Sandstone, at Battle Creek, Liberty (Jackson 
county), Moscow, near Napoleon and at the Gritstone Quarries, at Pt. aux 
Barques, with Rhynchonella camcrifera. 
Besides the species already enumerated from the Marshall group there yet 
remain a few too impe'rfect for adequate description, or belonging to classes 
not yet investigated. Among these are Lepidodendron and Neuropteris ? ; a 
coralline structure, encrusting, foliaceous or branching, with minute, short, 
crowded polygonal cells *0088 of an inch in diameter, without visible lamellae, 
but with some indications of transverse floors ; some undetermined Lamelli- 
branchs ; two sorts of Chiton-like scales ; two or three Nautili, of which one 
is nodulous; and sundry remains of spines, teeth and bones of fishes. 
University of Michigan , July 1, 1862. 
