What does "plumming" mean?
Plumming: The operation of finding, by means of a mine dial, the place where to sink an air shaft, or to bring an adit to the work, or to find which way the lode inclines.
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00