328 F. V. Hayden on Coal in Nebraska. 
after a drift had been carried into the bank 100 feet or more, 
it increased to 11 inches, and then nearly disappeared again. 
About 200 bushels of rather inferior coal have been taken out 
of this mine; but it does not promise well. On the Iowa 
Indian reservation, this same bed has been worked, and several 
hundred bushels of coal taken out, but the mine was soon 
abandoned. 
The seam on the reservation and the one at Rulo is probably 
identical with the 22 inch seam, revealed 16 feet above the 
Co., though here the coal seems to be more impure, being 
made up largely of masses of sulphuret of iron. 
I will here quote a paragraph from my preliminary field 
ona of the progress of the Geological Survey of Nebraska, 
dressed to the Hon. J. 8. Wilson, Commissioner General 
Land Office and printed in his annual report for 1867-8.* __ 
“At Prsrcaisich a thin seam of coal has been opened, and is 
now worked with some success by Mr. Beaty. The drift is 
very similar to that before described in my report of Pawnee 
Co., and extends into the bank about 100 yards. Mr. Beaty 
has taken out about 1,000 bushels of coal, which he sells 
readily at the mine for 25 cents per bushel. It is undoubtedly 
the same bed that is opened on Turner’s branch and at Friez’s 
, in Pawnee county ; but is not quite as thick or as good ; 
it contains large masses of the sulphuret of iron and other 
urit The coal seam here varies in thickness from ten 
een Th 
than two or three feet in thickness. A well was sunk in 
1867, pages 124-177. 
