... Georgian Bay Ship Canal
Shore line stations united topography and hydrography, and continuous cross- river sites served to further connect the work. ... Wires being fixed. the interval was determined for each instrument on measured bases and redetermined from time to time. ... angle served as an argument to compute the true elevation and location of topography shots by use of diagrams constructed from the interval. ... structures was closely cross-sectioned by transit and level or closely developed by stadia.
| Title | : | ... Georgian Bay Ship Canal |
| Author | : | Canada. Dept. of Public Works, Arthur St. Laurent |
| Publisher | : | - 1909 |
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