366 Scientific Intelligence. 
is very easy. Water readily decomposes the first, setting the 
The 
Il. GkoLtogy Anp NaturaAu History. 
1. Note on an Apparent Violation of the Law of Regular 
gressive debituminisation of the American Coal beds coming 
: . Lestey. (Proce. Am. Phil. Soc., xii, p. 125, 1871.) 
y OYJ. : 
—In the course of a Geological survey of certain lands in ee 
d. 
he 
Many years old, and several hundred feet from the outerop, under 
high hill cover, at a point on the western border of the d 
Bituminous Coal Basin of Pennsylvania, near the Mar land ap 
Virginia State line. More properly we should say that the bag 
‘ of the First Basin. For os 
Negro Mountain anticlinal comes up from Virginia and 5P 
the First Basin into two in Pennsylvania. The Mountaip ” 
down at Castleman’s River; but the anticlinal axis Tup* 
