The depths of the sea: an account of the general results of the dredging cruises of H.M.SS. "Porcupine" and "Lightning" during the summers of 1868, 1869 and 1870 / 
Thomson, Charles Wyville, Sir.
Carpenter, Dr., F.R.S.
Thomson, Wyville, Dr., F.R.S.
Jeffreys, I Gwyn, F.R.S.
London, 
1873.