The barren zone of the northern Appalachian coal field and its relations to Pittsburg's industries. - White, I. C. (Israel Charles), 1848-1927. ([Pittsburg?, 1908)
Caption title.
On cover: Address of Dr. I.C. White, state geologist of West Virginia, before the American Mining Congress, Pittsburg, Pennsylvania, on Friday the 5th day of December, 1908.
Keywords: Coal mines and mining -- United States; Industries -- Pennsylvania -- Pittsburgh