Archive image from page 286 of The depths of the sea. The depths of the sea. An account of the general results of the dredging cruises of SS. Porcupine and Lightning during the summers of 1868, 1869 and 1870, under the scientific direction of Dr. Carpenter, , J. Gwyn Jeffreys, , and Dr. Wyville Thomson, depthsofseaaccou00tho Year: 1873 CHAT. V.] DEEP-SEA SOUNDING. 225 the vanes. The revolving axis communicates its motion to the indices on the dial-plate c, which are so adjusted that the index on the right-hand dial passes through a division for every fathom of F Fig.
Archive image from page 286 of The depths of the sea. The depths of the sea. An account of the general results of the dredging cruises of SS. Porcupine and Lightning during the summers of 1868, 1869 and 1870, under the scientific direction of Dr. Carpenter, , J. Gwyn Jeffreys, , and Dr. Wyville Thomson, depthsofseaaccou00tho Year: 1873 CHAT. V.] DEEP-SEA SOUNDING. 225 the vanes. The revolving axis communicates its motion to the indices on the dial-plate c, which are so adjusted that the index on the right-hand dial passes through a division for every fathom of F Fig. 43.—' Massey's ' Sounding Machine, vertical descent, whether quick or slow, and makes an entire revolution for 15 fathoms, while the left- hand index passes through a division on the circle for 15 fathoms, and makes an entire revolution during Q
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Keywords: 1800, 1870, 1873, archive, book, bookauthor, bookcentury, bookdecade, bookpublisher, booksubject, bookyear, carpenter_william_benjamin_1813_1885, deep_sea_desposits, deep_sea_temperature, drawing, historical, history, illustration, image, jeffreys_john_gwyn_1809_1885, lightning_ship_, london_new_york_macmillan_and_co_, marine_animals, ocean, page, picture, porcupine_ship_, print, reference, thomson_c_wyville_charles_wyville_sir_1830_1882, vintage
