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Plate III. Second Cruise of H.M.S. PORCUPINE -1869. Published in The Depthsof the Sea by C. Wyville Thomson in 1873. Prolific life forms were brought tothe surface from dredge station 37 in 2435 fathoms depth exploding forever the300-fathom azoic theory of Edward Forbes and paving the way for the BritishGovernment to support the CHALLENGER Expedition.