Figure 55. Burt's nipper, invented by Peter Burt, a British ship builder, in1818. It was used to keep the sounding line vertical in spite of the motion ofthe ship. It was used by the British Admiralty along with a device of the sametype designed by
4/4/2019 2:12:25 PM
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco
Subject: Oceanography
Subject: Historical instruments