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![Sketch of Charleston Harbor, exhibiting the normal Course and Velocity of theTidal Current at Flood from observations by Lieut cgs05098.jpg Sketch of Charleston Harbor, exhibiting the normal Course and Velocity of theTidal Current at Flood from observations by Lieut](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_cgs05098.jpg?itok=au63U328)
Description
Sketch of Charleston Harbor, exhibiting the normal Course and Velocity of theTidal Current at Flood from observations by Lieut. J.N. Maffitt. This is afairly sophisticated attempt at showing the nature of tidal flow. John Maffittamong the most knowledgeable and successful of Coast Survey hydrographers. Hebecame a very successful Confederate blockade runners and commerce raider. (Image credit: NARA C&GS; Colllection)