: 
a 
‘4 
3 
ES 
; 
’ 
arrangement of superficial earthy material, — 358 
I do not see how these conclusions can be avoided. It seems 
. 
Philadelphia and vicinity, phenomena which plainly come 
under this class. During the Centennial Exhibition, Market 
SS 
LD 
Gs ze = mn 
=i 
SS 
WSS 
SS 
ae 
—— 
MUTT 
} 
ck is gneiss and mica schist with hornblendic and chloritic 
strata, inclined at a high angle, and decomposed, for the most 
HANG 
