Sources of limestone, gypsum, and anhydrite for dusting coal mines to prevent explosions.
| Corporate Author: | |
|---|---|
| Format: | Government Document eBook |
| Language: | English |
| Published: |
[Washington] :
GPO,
1925.
|
| Series: | Mines Bur. Bull. No. 247
|
| Subjects: | |
| Online Access: | Connect to the full text of this electronic document |
| Item Description: | Includes index. Electronic resource. |
|---|---|
| Physical Description: | 1 online resource (vi+70+ovolumes pages) |