Report of the Department of Mines of Pennsylvania . ^oappou JO ajoa 5 ^ w is s fH w a fk a <.3 h^ K s .c S3 -s .aca w ca .sa ? s 3 s ^ ;^ ti o o a a -c3 a 3 C3 f4 <! <; i^S «; (i< ® a « X 6 P g <! t^O O O a « w f^ a a a a a OS aj OO a aja to 00 x a 5! ?i! g; g g ^ to CO at g; ss 00 ss §3 ss h^ « S ij .a 20—24—1911 306 REPORT OF THE DEPARTMENT OF MINES Off. Doc.

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Keywords: ., book, bookcentury1900, booksubjectmineralindustries, bookyear1912