. 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. PHYSICAL OCEANOGRAPHY 251 the upper row are seen some results without a light-filter at Results at Station 51. The plate on the left (No. 10), exposed for 40^^^ minutes at 500 metres, was strongly influenced by the rays, and without The next plate (in the middle of the upper row), exposed for C( 80 minutes at 1000 metres, was also blackened by the light-rays. The third plate was exposed for 120 m
. 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. PHYSICAL OCEANOGRAPHY 251 the upper row are seen some results without a light-filter at Results at Station 51. The plate on the left (No. 10), exposed for 40^^^ minutes at 500 metres, was strongly influenced by the rays, and without The next plate (in the middle of the upper row), exposed for C( 80 minutes at 1000 metres, was also blackened by the light-rays. The third plate was exposed for 120 minutes at 1700 metres, and showed no effect whatever. These experiments were made at noon on the 6th June with a clear sky, and show that a good deal of light penetrates to a depth of 1000 metres—considerably deeper than was previously supposed. The limit of light. 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
