March 1911 Issue [Article] Exploring the ocean’s floor Download PDF Adjust Share The deep sea expedition of the Michael Sars by John, Sir Murray, This article is only available as a PDF to subscribers. Download PDF Tags 19th century 20th century Atlantic Ocean Challenger Expedition, 1872-1876 Deep-sea animals Deep-sea sounding Johan Hjort John, Sir Murray Marine biology Michael Sars (Ship) Norway Oceanography Research Adjust Share