Figure 67. British Admiralty echo sounder, model MS X. In the 1930's the
British Admiralty designed a magnetostrictive ultrasonic sounding device which
subsequently led to the manufacture of magnetostrictive sounding systems by
Hughes and Son Ltd.
Image ID: ship4277, Voyage To Inner Space - Exploring the Seas With NOAA Collect Photographer: Y. Berard Credit: Oceanographic Museum of Monaco