A variety of types of equipment and fittings including the lock sounder of the HIRONDELLE, figures 1 and 2; metallic fish trap with electric lamp devised by Dr. Regnard, figure 3; spherical floats used for studies of the Gulf Stream, figures 6 and 7; and detail of a robinette for use with the sounding system, figure 8. Plate II, left side. “Results of the Scient. Campaign…” Vol. 84.