Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 122
determined by plotting a cross section and transferring the distancesthus found to the plan, and inclosing all such points somewhat within thelimits as set off for railway purposes. These plans are generally filed in theregisters office for the county through which the line passes. Hydrometrical or…
Mechanical drawing
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