Figure 51

Figure 51. HIRONDELLE II sounding machine used by Prince Albert I of Monaco. This machine represented the evolution of a number of sounding machines used by Prince Albert I since first having a wireline machine installed on the HIRONDEL LE. The first machine was wound back in by hand, but subsequent models had stea m engines for winding in. The engineer Jules Le Blanc built these machines.

Photo Category: Oceanography - Historical instruments