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Method and cost of mining Upper and Lower Freeports and Lower Kittanning in group of mines in western central Pennsylvania
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6151 | ✔ Available |
Method and cost of mining at Barr mine, Tri-State zinc and lead district
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6159 | ✔ Available |
Method and cost of mining at No. 8 mine, St. Louis Smelting and Refining Company, Southeast Missouri district
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6160 | ✔ Available |
Mining practice at Ray mines, Nevada Consolidated Copper Co., Ray, Ariz
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6167 | ✔ Available |
Mining methods and costs at Magma mine, Superior, Ariz
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6168 | ✔ Available |
Mining practice and methods at Inspiration Consolidated Copper Co., Inspiration, Ariz
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6169 | ✔ Available |
Methods of mining disseminated lead ore at mine in southeast Missouri district
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6170 | ✔ Available |
Mining methods and costs, Alaska Juneau Gold Mining Co., Juneau, Alaska
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6186 | ✔ Available |
Method and cost of mining Pittsburgh, or No. 8, coal bed in 100 per cent mechanized mine in eastern Ohio
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6200 | ✔ Available |
| Joyner - Microforms B300 | C22.11-6208 | ✔ Available |
Mining methods and costs at Hecla and Star mines, Burke, Idaho
| Location | Call # | Status |
|---|---|---|
| Joyner - Microforms B300 | C22.11-6232 | ✔ Available |