Report of the Bureau of Mines of the Department of Internal Affairs of Pennsylvania . QJ OJ Ol ., OJ 0) c c c ?; c e e iISS KjS issse sss t. (.. 0) OJ Oj 0) c c c e ^trojc jjoiojo) S C c C c oj i- E bCC 3 O o c- Ji > to p Si Uo >^S. bo rt acE55 n5i H^Sriio fe-ccao o c ^-S o CJ o OJ t, O 0) 0) cii;— 0-5 cd c E !00O r-l 1-1 ort <-<N2;^o3 sss:^ wssss ^ is .^t^ 4P0 OF THE BUREAU OF MINES. Off.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcoalmin, bookyear1900