Public domain. Cover image from Project Gutenberg ebook #65426.
Industrial Minerals and Metals of Illinois
Capitoli (11)
- INDUSTRIAL MINERALS AND METALS OF ILLINOIS 0:00
- INDUSTRIAL MINERALS AND METALS OF ILLINOIS 0:40
- LIMESTONE 2:41
- METALLIC ORES AND FLUORSPAR 11:44
- SILICA SAND 27:10
- GRAVEL AND SAND 35:38
- SILICA (TRIPOLI) AND OTHER MINERAL MATERIALS OF EXTREME SOUTHERN ILLINOIS 46:50
- CLAY AND SHALE 54:12
- PEAT 1:04:15
- OTHER MINERAL RESOURCES 1:05:07
- Transcriber’s Notes 1:18:16
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