from The Century Dictionary and Cyclopedia
- n. A cross-cut passage toward the dip of the strata. Also back-set mine.
Sorry, no etymologies found.
I have taken that industry to show in a short way the extent of it in peace times, and when it is suggested, as I pointed out, that we discuss Canada's minerals from a war standpoint, the mind of Canada naturally focusses itself on this great metal, nickel, and the mind turns back-mine does for I went to live in Sudbury in 1901 -- to the agitations of former years to prohibit the export of nickel.