. 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. ance to the water, both while being lowered and hauled in. It is, besides, quite use- less for towing, for which purpose it was never intended. In the construction of our nets on the "Michael Sars" our idea was to make the fore part in such a way that as much water as possible might percolate through. As a rule they are i metre in diameter at the entrance and metres long (see Fig. 2


. 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. ance to the water, both while being lowered and hauled in. It is, besides, quite use- less for towing, for which purpose it was never intended. In the construction of our nets on the "Michael Sars" our idea was to make the fore part in such a way that as much water as possible might percolate through. As a rule they are i metre in diameter at the entrance and metres long (see Fig. 29). The fore part is cylindrical for a length of 1^ metres and of the same size as the entrance. There is first half a metre of shrimp net, then 1 metre of coarse silk with a mesh of mm., and the after part, consisting of a cone, 3 metres long, of finer silk with a mesh of mm. These filter the water admirably. We can tow them at a great speed and haul them on board rapidly, even with the little after star- board winch; and Fig. «Michael Sars' they Capture young Ai net; B, coarse silk; C, finer silk. Tow-Net. ; D, 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