A map of the world ocean between about 50N and 10S in:
In: Gravity Expeditions at Sea 1923-1932. 1935. Vol II, Plate I, by Vening
Meinesz, et al. Map shows location of gravity profiles in the
world ocean up to that time.
Image ID: map00095, Voyage To Inner Space - Exploring the Seas With NOAA Collect Credit: NOAA Central Library Historical Collection