pl23_ship4222.jpg
Description
Figure 21. Silvertown Company sounder, a device very similar to the Belknap-Sigsbee sounder with one important difference. This sounder had a uniqueballast release method which involved a knife cutting the line holding theballast upon beginning of ascent. This device was used in cable laying surveys.
Credit
Oceanographic Museum of Monaco
Photographer
Y. Berard
Collection
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Sounding Instruments
Keywords
Oceanography
Historical instruments