Figure 64. N.I.O. bottle designed by Francis E. Pierce, Dennis I. Gaunt, and
Richard Dobson at the National Institute of Oceanography at Grand-Bretagne.
This utilized a valve for closing but also inverted. The mounting for the therm
ometer toppled over by the action of a spring. This bottle was used by the DISC
OVERY II in the Gulf of Gascogne at 4700 meters.
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