""The Depths of the Sea"" is a comprehensive account of the findings and discoveries made during the dredging cruises of H.M.S.S. Porcupine and Lightning between 1868 and 1870, written by C. Wyville Thomson. The book provides an in-depth exploration of the ocean's depths, including the geology, biology, and ecology of the sea floor. The author describes the various species of marine life that were discovered during the expeditions, including new species...