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Words: 217235 in 64 pages
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INTRODUCTION 1
INTRODUCTION.
PAGE
Rise and progress of railroads 1 Influence of railroads 3 Safety of railroad travelling 5 Preliminary operations 5 Mechanical principles of locomotion 6 Determination of character of road 7 Gauge 8 General establishment of route 10
RECONNOISSANCE. General topography 12 Barometrical levelling 18
SURVEY.
Topographical sketching 24 General establishment of grades 32 Equating for grades 34 Comparison of surveyed lines 39
LOCATION.
Alignment 41 Final adjustment of grades 46 Comparison of located lines 47
PRELIMINARY OPERATIONS.
Specification 55 Contract 81 Solicit 84 Bid 85 Comparison of bids 87
LAYING OUT WORK.
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