Surveying - A Manual of Practical Instruction in the Art of Plane Surveying, Including Plotting, Leveling, Triangulation, Line Running, Cross-Sectioning, Traversing, and Other Details of Field Work, 1908 #261411

The Level Bubble — Locke's i-iand-cel — Abney hand-level and Clinometer — Leveling tods (target, self-reading) — New York, Bos ton, and Philadelphia Rods — cross-section Rod — Ranging Poles Wye Level (four-screw and Three — Screw) — Line of Collimation Instrumental Parallax — Spherical Aberration — Chromatic Aberration — Adjustments of We Level — Adjustment of Axis of bubble-tube Adjustment of Vertical Axis — Replacing the cross-hairs — The Dumpy Level — Adjustments of Dumpy Level — Peg Method of Adjustment Precise Spirit Level — Gurley Binocular and Monocular hand-levels and Adjustments — Setting Up the Level — Care of the Instrument Problems in Leveling — Profile Leveling — cross-sectioning — S'lope Stakes.