Content :-
Chapter I :- Instruments.
Transit: Historical—Adjustments—Attachments—Special transits —^Tapes—Repair of field instruments—Bibliography.
Chapter II :- Meridian.
Polaris—Solar attachment—Direct solar observation—Geographical
solution—Bibliography.
Chapter III :- Underground Practice .
Stations: kinds—Marking—Numbering—^Setting up transit—Sighting
in dark—Bibliography.
Chapter IV :- Carrying the Meridian Underground.
Traverse—One shaft—Wires—Weights—Three-wire method
Four-wire method—Bent line—-Vertical sights with ordinary transit —Measure of depth—Bibhography.
Chapter V :- Secondary Openings, Survey of .
Coal mines—Stopes narrow—Stope-books—String surveys—Estimate
of values—Volumes—Mine sampling—Bibliography.
Chapter VI :- Record of the Survey .
Field notes—Note-books—Side notes—Office books—Calculationbook—
List of text-books.
Chapter VII :- Uses of the Mine Maps .
Laws regarding mine maps—Uses of the topographical map—Geological
maps and sections—Old workings—Assay maps.
Chapter VIII :- Making the Map.
Paper—Scale—Platting of angles—Protractor—^Tangents—Chords
—Coordinates—-Bibliography.
Chapter IX :- Map Filing.
Models—Erasures—Ink and colors—Blue-prints: Overexposed, to
write upon, waterproofing of—Solution—^Tracing from blue-print
—Vandyke prints—Copying of drawings.
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