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Description
Plate VI. - Diagram of the 'Porcupine soundings in the Atlantic and in theFaeroe Channel, showing the relation between temperature and depth, - the serial soundings reduced to curves. The numbers refer to the stations on the Charts,Plates II, III, and IV.In: Thomson, Wyville. 1873. The Depths of the Sea. MacMillan and Co., London. (Image credit: NOAA Central Library Historical Collections)