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Images
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Early diagram of echo-sounding
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Cartoon depicting deep sea dredging
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Marine Dredge
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Benjamin Pierce
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Steam winch with steel wire
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Contoured map of Monterey Bay
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Bathymetric map of shoal area in Mid-Atlantic Grave
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Specimens of Globigerina
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Various coral species
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Explorers using a sidescan sonar
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Survey of Trincomalee Canyon
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Releasing a meterological radiosonde balloon
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Coast Survey Steamer Blake
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Electronic Position Indicator
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The C&GS Ship Pioneer
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Early magnetic profile
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Using a precision depth recorder
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Ferdinand Hassler
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Alexander Dallas Bache
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1880 Gulf Stream chart
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The ill-fated Washington
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Coast Survey Steamer Bibb
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Equipment on the HMS Challenger
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Coast Survey Steamer Hassler
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Sigsbee Sounding Machine
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First modern bathymetric map
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Steel wire onboard Blake
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The Blake
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Fisheries Steamer Albatross
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Plankton nets
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Weather kite
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Soundings map
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Dorsey Fathometer
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Davidson seamount
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Submarine mountains
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Radio acoustic ranging (RAR)
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Timing a bomb fuse
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Seismic reflection map
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Navigation lattice
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Diver
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Ship wreck etching
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