Putnam, G. R. (George Rockwell), b. 1865 · New York, J. Wiley & Sons; [etc.] · leaf 58
d stadiamethod. The hydrography, or the survey of the water area, isof prime importance for the chart, but in the order ofprosecution of the work it is convenient but not essentialthat it come after sufficient points have been locatedby the triangulation and topography. A hydrographicsheet is… … FIG. II. TOPOGRAPHIC SURVEY PARTY AT WORK WITH PLANE TABLEON THE PRIBILOF ISLANDS.
Nautical charts
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