Coast Survey chart showing density of soundings from original survey used to
to construct nautical chart. Comparing survey of Ponce Harbor, Puerto
Rico to published chart of same.
In: "Nautical Charts" by George Rockwell Putnam, 1908. 162 pp.
Image ID: cgs00111, NOAA's Historic Coast & Geodetic Survey (C&GS) Collection
Photo Date: 1908
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
NOAA Central Library
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November 10, 2017