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Heat flow operation on R/V Horizon: John G. Sclater, John Phillips Greenhouse and George W. Hohnhaus. When the ship left Suva at the start of Leg IV the main heat flow program began. This involved preparing the wire, then putting the spear-like probe over and tuning the pinged, a self-contained echo sounder, before attaching it to the same wire 300 feet above the probe. Nova Expedition, July 1967

Heat flow operation on R/V Horizon: John G. Sclater, John Phillips Greenhouse and George W. Hohnhaus. When the ship left S...