Noah Webster
Plumming
PLUM'MING, noun Among miners, 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.
PLUM'MING, noun Among miners, 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.