Deploying a bathythermograph from a fisheries research vessel. The
bathythermograph is one of the standard tools of the oceanographer. It draws a
continuous trace of water temperature to a depth of 450 feet.
Image ID: fizh0120, NOAA's Historic Fisheries Collection Location: Pacific Ocean Photo Date: 1960 circa Photographer: Jerome S. W. Marr, BCF Credit: NOAA Central Library Historical Fisheries Collection