Figure 46. Hirondelle sled trawl devised by Prince Albert I of Monaco for use
on l'HIRONDELLE in 1886. This type of trawl was very successful and used over
the course of 30 years in the various scientific expeditions of Prince Albert I
of Monaco and continued to be used later by small vessels of the Oceanographic
Museum. It was first used in 60 meters of water in the Gulf of Gascogne in 1886.