Gases from Blasting in Tunnels and Metal-mine Drifts Eugene Delos Gardner Published: 1927 Total Pages: 100 Get eBook
Drilling and Blasting in Metal-mine Drifts and Crosscuts Eugene Delos Gardner Published: 1929 Total Pages: 178 Get eBook
Progress Reports - Metallurgical Division Abraham L. Engel Published: 1942 Total Pages: 1106 Get eBook
Size Consist, Chemical Analysis, and Physical Properties of 2-1/2-inch Subbituminous Slack from the Denver (Colo.) Region Vernon Frank Parry Published: 1942 Total Pages: 726 Get eBook
Some Essential Safety Factors in Tunneling Daniel Harrington Published: 1941 Total Pages: 66 Get eBook
Ochers and Mineral Pigments of the Pacific Northwest Occurrence Charles Holmes Herty Published: 1929 Total Pages: 1220 Get eBook
