Figure 24. Clarke-Bumpus plankton gathering device. Invented in 1939 by
George L. Clarke of Harvard University and Dean F. Bumpus of Woods Hole
Oceanographic Institution. This device was used on the Atlantis. Top: view of
the apparatus. Middle: view of the apparatus with net on frame. Lower left:
rear view of the device's mouth. Lower right: plankton recovery unit.