. The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic. Oceanography. Fig. 571. The Humpback [Megaptera boops). (From G. O. Sars.). Fig. 572. Cachalot or Sperm-whale (Physeter macrocephalus). (From drawing in the Bergen Museum.) The Chart (Fig. 573) gives his records from the Atlantic, and at the same time the temperature at 100 metres has been entered, from Fig. 312, p. 445, and from Schott's report on the " Valdivia" Expedition. The dense hatching shows
. The depths of the ocean; a general account of the modern science of oceanography based largely on the scientific researches of the Norwegian steamer Michael Sars in the North Atlantic. Oceanography. Fig. 571. The Humpback [Megaptera boops). (From G. O. Sars.). Fig. 572. Cachalot or Sperm-whale (Physeter macrocephalus). (From drawing in the Bergen Museum.) The Chart (Fig. 573) gives his records from the Atlantic, and at the same time the temperature at 100 metres has been entered, from Fig. 312, p. 445, and from Schott's report on the " Valdivia" Expedition. The dense hatching shows areas where whales were fished in 1887, the open hatching areas then abandoned. In northern boreal waters, north of the isotherm of io° C, only or mainly the Greenland whale, fin-whales, and humpbacks are found, the right whale of the North Atlantic (north-caper or Biscayan whale, Balcena biscayensis, Fig. 574) being a rare visitor. In antarctic waters, where the thermal 1 See Turner, Journ. Anat. and Phys., vol. xxvi. '2 The Fisheries and Fishery Industries of the United States, Section V., Washington, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Murray, John, Sir, 1841-1914; Hjort, Johan, 1869-. London Macmillan
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