Report of the Bureau of Mines of the Department of Internal Affairs of Pennsylvania . EE— adw >,t;oo -* t. aj cd o o o S = O c I -biZ^ ts a! o c o C C O dJ S c ** * P I — — ;S S^ *5 o o a ( 3 .^ 4) .S-o a. c c CS CO C t-i — u a. 3 08 922 REPORT OF THE BUREAU OF MINES. Off. Doc. :-H = c .. p- ^ t. ra t. u cp c cO o 3 „ bcZ ~ CS ; > s o *^. o 5 ( o«sooo6o6?tl cd o t. Ji M ? ? ^- 4 Si t- . -1. (-4 opC4 J K ?-?^ t. .i) S ? l^ 2:e;

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcoalmin, bookyear1900