Report of Progress in the Laboratory of the Survey at Harrisburg... - Andrew Smith McCreath - Bog

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Report Of Progress In The Laboratory Of The Survey At Harrisburg; Report Of Progress; Volume 1000 Of Report Of Progress (1st-3rd) In The Laboratory Of The Survey At Harrisburg; Andrew Smith McCreath
Andrew Smith McCreath, Pennsylvania. Board of Commissioners for the Second Geological Survey
Published by the Board of commissioners for the Second geological survey, 1878
Science; Earth Sciences; Geology; Coal; Geology, Economic; Mines and mineral resources; Ores; Science / Earth Sciences / Geology; Technology & Engineering / Mining