FV. Hayden on Coal in Nebraska. 327 
problem seemed to be the most important one of the survey. 
iE It is now known that all the Carboniferous rocks of Nebraska 
area occupied by them widens southward ; but it forms only a 
nairow strip, hardly two counties wide, even at the south 
th 
whole bed of black shale and ¢oal is about 12 inches thick. At 
spinwall, in Nemaha county, two seams of coal were met 
with. One of them high up in the hills, is probably the same 
as that just mentioned as occurring at Brownsville, while near 
the water’s edge another seam 1s disclosed about 22 inches 
in thickness, (Coal commands a ready sale here at 40 to 80 
cents per bushel. Some English miners have commenced 
a the outcrop, but 
