. 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. 17.—Monaco's Pelagic Trawl. (From Steuer.) and comparing the catches so obtained, he could determine at what particular depths the animals lived, and he succeeded in collecting by this means valuable data as to pelagic deep- water forms. The Prince of Monaco has also added largely to our knowledge of the habitats of the larger pelagic organisms by means of his pelagic trawl (Fig. 17), which
. 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. 17.—Monaco's Pelagic Trawl. (From Steuer.) and comparing the catches so obtained, he could determine at what particular depths the animals lived, and he succeeded in collecting by this means valuable data as to pelagic deep- water forms. The Prince of Monaco has also added largely to our knowledge of the habitats of the larger pelagic organisms by means of his pelagic trawl (Fig. 17), which is designed for Petersen young-fish Fig. 18.— C. G. Joh. Petersen's Pelagic Young-Fish Trawl. (From Schmidt.) being towed horizontally through the water. In addition he made some remarkable captures of large pelagic animals, chiefly cuttle-fish, by shooting whales and examining their stomach con- tents, for the whale is still far more capable of catching living marine creatures than any scientific appliance hitherto invented. The young-fish trawl designed by C. G. Joh. Petersen (Fig. i8) is a considerable improvement on the Prince of Monaco's pelagic trawl. It is very easy to construct, and may be of any size or mesh. For catching young fish, etc.,. 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
