| Title: | Report of progress (1st-3rd) in the laboratory of the Survey at Harrisburg. |
| Author: | McCreath, Andrew Smith, 1849-1930 |
| Author: | Pennsylvania. Board of Commissioners for the Second Geological Survey |
| Note: | Published by the Board of commissioners for the Second geological survey, 1875 |
| Link: | page images at HathiTrust |
| No stable link: | This is an uncurated book entry from our extended bookshelves, readable online now but without a stable link here. You should not bookmark this page, but you can request that we add this book to our curated collection, which has stable links. |
| Subject: | Coal -- Analysis |
| Subject: | Mines and mineral resources -- Pennsylvania |
| Subject: | Ores -- Sampling and estimation |
| Other copies: | Look for editions of this book at your library, or elsewhere. |
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