| Title: | Tests of a barrier using rock dust in paper bags |
| Author: | Greenwald, H. P. (Harold Putnam), 1893- |
| Author: | Howarth, H. C. (Henry C.), 1879- |
| Author: | United States. Bureau of Mines |
| Note: | U.S. Dept. of the Interior, Bureau of Mines, 1938 |
| 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 mines and mining -- Safety measures |
| Subject: | Mine explosions |
| Other copies: | Look for editions of this book at your library, or elsewhere. |
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