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Page:Popular Science Monthly Volume 76.djvu/201

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A GREAT MARINE MUSEUM
197
Fig. 1. Exhibit of Apparatus for deep-sea Exploration, sounding machines and bottom samplers.

the exhibits of harbor construction, light houses and life-saving equipment, and the scientific departments of special interest to those concerned in marine investigations.

The first of these is the collection of nautical and oceanographic instruments and the oceanographic exhibit. The collection of charts, compasses, sextants, chronometers, clinometers and ship's logs is extensive. In adjacent rooms, 3 to 6, are to be found a most excellent and an almost historically complete collection of the instruments devised for deep-sea exploration. Sounding leads, pressure tubes and bottom samplers from the time of the expeditions of the Challenger (1873-1874)