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Mechanical Sound Systems
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Coast-Geodetic-Survey
Nautical Charting
Soundings
Mechanical Sound Systems
Soundings
Tanner Sounding Machine.Designed by Zera Luther Tanner, first captain of the ALBATROSS I
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Trolley sounding arrangement.Off of ISIS
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Trolley and line ready for next sounding.Off of ISIS
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Trolley rig - Hauling slack from sounding line prior to sounding.Off of ISIS
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Trolley rig - paying out leadline by hand as trolley carriage runs down cable.Off of ISIS
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Getting upright cast as sounding stand passes position of lead.Off of ISIS
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Hauling in sounding line of trolley rig using hand crank on boat deck.Off of ISIS
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Arrangement of sounding machines on PATHFINDER.Off of PATHFINDER
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Arrangement of sounding machines on PATHFINDER.Off of PATHFINDER
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Arrangement of sounding machine on PIONEER.Off of PIONEER
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Coast and Geodetic Survey sounding tube equipment.Hydrographic Manual 1931, Figure 17, p. 53
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Shelter and equipment used in reading sounding tubes.Off of PIONEER
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