SCIENTIFIC APPARATUS, INSTRUMENTS OR DEVICES USED IN MEASURING, INDICATING OR RECORDING OCEANOGRAPHIC PHENOMENA, INCLUDING SALINOMETERS, PHOTOGRAPHIC CAMERAS, SEA BED CORERS, IRRADIANCE METERS, TRANSMISSOMETERS, PINGERS (UNDERWATER SOUND SOURCES), SONAR BEACONS, FLUID CURRENT METERS, TEMPERATURE PROBES, TURBIDITY METERS, FLOATS AND BUOYS, EXPLOSIVE RELEASES, TELEVISION CAMERAS AND MONITORS, ANEMOMETERS, GRAPHIC RECORDERS, PAN AND TILT DRIVES, DYE RELEASE UNITS, WATER SAMPLERS, VANE SHEAR METERS, AND SAMPLING BOXES