Figure 52. Thoulet sounder devised by Professor Julien Thoulet of the University of Nancy in 1908. This was a modification of the Belloc sounder that Professor Thoulet wished to make more portable and to have a lower cost. No information is available concerning the test and use of this machine.
Photo Category: Oceanography - Historical instruments
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| Added On | 18th October 2015 |
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