. 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. 122. Carinaria lamarckii, Per. and Les. (From Steuer.) The fragile shells of this species are occasionally met with in deep-sea FIG. 123. Pterotrachea coronata, Forsk. (From Leuckart, after Steuer.) This species has no shell, and therefore does not enter into the composition of deep-sea deposits. nucleus of native iron (or an alloy of iron, cobalt, and nickel), surrounded by a s
. 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. 122. Carinaria lamarckii, Per. and Les. (From Steuer.) The fragile shells of this species are occasionally met with in deep-sea FIG. 123. Pterotrachea coronata, Forsk. (From Leuckart, after Steuer.) This species has no shell, and therefore does not enter into the composition of deep-sea deposits. nucleus of native iron (or an alloy of iron, cobalt, and nickel), surrounded by a shell of brilliant magnetic oxide of iron, to which the magnetic properties of the spherules are due. The brown spherules (see Figs. 132 and 133) have the lustre of bronze externally, and have a finely lamellated crystalline structure, with blackish-brown inclusions of magnetic iron, which account for their extraction by the magnet. A cosmic. 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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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondo, bookyear1912
