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- Mining laws of Costa Rica
- Danger to the public from abandoned mine workings and other property
- Mining laws of Japan
- Mining laws of Brazil
- An automatic electric man-hoist for slopes or inclines
- Mining laws of Nicaragua
- Survey of cracking plants, January 1, 1930
- Mining laws of Latin America :general summary
- Mining methods and costs at the Argonaut mine, Amador County, California
- Milling methods and costs at the northern Idaho mills of the Bunker Hill and Sullivan Mining and Concentrating Co.
- What the coal miners can do to prevent injury from falls of roof
- Systematic timbering rules at the Washington coal mines
- The grounding of electric systems in and around mines
- Milling methods and costs at the concentrator of the Chief Consolidated Mining Co., Eureka, Utah
- Mining methods and costs at the Consolidated Cortez Silver Mine, Cortez, Nevada
- Some hazards of transporting explosives in automobile trucks
- Mining laws of Trinidad
- The cost of accidents to industry
- Mining laws of Australia
- Notes on the determination of molybdenum
- Mining laws of El Salvador
- Specific heat of water vapor at high temperatures derived from explosion experiments
- Mining laws of Uruguay
- Safety at the mines of the Ford Collieries Co., Curtisville, Pa.
- Mining laws of Haiti
- Milling practice at the Netta mine of Eagle Picher Lead Co., at Picher, Oklahoma
- Mining laws of Canada
- Undercut block-caving method of mining in western copper mines
- Explosions in Alabama coal mines
- Milling practice at the White Bird concentrator, Canam Metals Corporation, Picher, Okla.
- Fatalities in Alabama coal mines
- Method and cost of quarrying limestone at the Speed quarry of the Louisville Cement Co., Speed, Indiana
- Milling methods and costs at the Black Hawk concentrator, Hanover, New Mexico
- Mining methods and costs at Tintic Standard mine, Tintic District, Utah
- List of permissible self-contained oxygen breathing apparatus, gas masks, and hose masks
- Milling method and cost at the conglomerate mill of the Calumet & Hecla Consolidated Copper Co
- Mining methods and costs at the Montreal Mine, Montreal, Wis.
- Methods of mining at the Black Rock Mine, Butte & Superior Mining Co., Butte District, Mont.
- Mining methods and costs of the Silver King Coalition Mines Co., Park City, Utah
- The mineral industry and the young engineer
- Specially recommended trailing cable
- Method of mining a thick coal bed in eastern Utah
- Milling methods of the American Zinc Co. of Tennessee, Mascot, Tenn.
- Mining bituminous coal by stripping methods
- Possible utilization of natural gas for the production of chemical products
- Conservation of natural gas in relation to some recent developments
- Use of thermodynamical data to study the chemical reactions of metallurgical processes
- Sources and distribution of major petroleum products :Atlantic Coast states, 1929
- Holmes Safety certificate presentation
- Industrial safety training at a mining school