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Description
Figure 25. Bachmann penetration tubes. These instruments are not properlysounders, but an accessory for use with the instruments of the time. Thebacteriologist Martin Bachman designed these tubes in order to elongate the real sounder tube and penetrate more deeply into the sediment. These tubes achieved deep penetration but little sample material. First used on VALDIVIA in 1898.
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