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Description
Figure 29. Marsh net devised by C. Dwight Marsh in 1893. Left: view of theapparatus before closing. Upper right: view of the closed mechanism. Lowerright: detail of the closing mechanism. This net was used for plankton sampling in lakes. It was first tested in Green Lake, Wisconsin, U. S. A., in 1893.
Credit
Oceanographic Museum of Monaco
Photographer
Left and
Collection
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Biologic Sampling Apparatus