Figure 67. British Admiralty echo sounder, model MS X. In the 1930's theBritish Admiralty designed a magnetostrictive ultrasonic sounding device whichsubsequently led to the manufacture of magnetostrictive sounding systems byHughes and Son Ltd.
4/4/2019 2:12:26 PM
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco
Subject: Oceanography
Subject: Historical instruments