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Secchi disks, used for measuring water turbidity.

Secchi disks, used for measuring water turbidity.
Secchi disks, used for measuring water turbidity.
Secchi disks, used for measuring water turbidity.
Secchi disks, used for measuring water turbidity.
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Secchi disks, used for measuring water turbidity.
Still Image
01/01/1968
archives/Scientific_Instruments/SI-200A.tif
Instrument: #200A
Designer:
Manufacturer:
Negative: A-0074 E
Date is approximate
Photo courtesy of WHOI Archives
© Woods Hole Oceanographic Institution
Instrument received from: Bumpus, D/Clark, George
Date: 01/01/1968
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