Digital Library Search
![A 1912 map of the Indian Ocean in Tiefenkarten der Ozeane mit Erlauterungenby Max Groll map00058.jpg A 1912 map of the Indian Ocean in Tiefenkarten der Ozeane mit Erlauterungenby Max Groll](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_map00058.jpg?itok=9zsANl1R)
Description
A 1912 map of the Indian Ocean in Tiefenkarten der Ozeane mit Erlauterungenby Max Groll. Note the light-colored (shallower) area between Australia andAntarctica, an early indication of the continuity of the oceanic ridge systemin the South Indian and South Pacific Oceans. Amazingly, a feature as large asNinety East Ridge had yet to be discovered. Plate II, Indian Ocean. (Image credit: NOAA Central Library Historical Collection)