. Official proceedings . A working place ready to be undercut, a fire boss examining roof andtesting for gas before allowing the cutting machine to A Shortwall undercutting machine in operation. 59 ing gTKxl track and good rolling stock. Jn this i>icture you seea train of Hi niine cars drawn by a 2(J!-ton electric systems and dis])atchers such as you railroad men arefamiliar, with are emjdoyed to exj^edite the handling of theloaded and empty trains. A mine \producing 7,01)0 or s,()0() tonsjjer day presents quite a transportation problem.

---

Size: 1807px × 1383px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, bookidofficialproc, bookyear1901