By E.J. Kennedy
Preface
Abstract
Introduction
Leveling method and concepts
Curvature and refraction
Precision
Accuracy
Leveling classifications
Gaging-station levels
Ordinary levels
Adjustment of elevations
Engineer’s level
Automatic level
Tilting level
Dumpy level
Level accessories
Leveling rod
Checking the rod
Holding the rod
Operating the engineer’s level
Transporting the level
Checking the tripod
Setting up the level
Leveling the instrument
Focusing the level’s telescope
Establishing a reading routine
Adjusting the engineer’s level
Reticle
Circular level vial
Collimation
Fixed-scale test
Peg test
Gaging-station datum control
Determining frequency of levels
Establishing gage datum
Installing reference marks
Installing reference points
Running levels
Checking gages
Electric tape
Float tape
Wire weight
Vertical staff
Inclined staff
Bubble gage
Other gages
Maintaining level summary sheets
National Geodetic Vertical Datum
Bench mark level tie
Checklist of equipment for gaging-station levels
Selected references
Appendix: Master copies for duplicating notekeeping and level-summary forms
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