Library Digital Collections

John Sclater, Baron E. Thomas, George W. Hohnhaus, and John Phillips Greenhouse on R/V Horizon during Nova Expedition, July 1967. 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 pinger, a self-contained echo sounder, before attaching it to the same wire 300 feet above the probe

John Sclater, Baron E. Thomas, George W. Hohnhaus, and John Phillips Greenhouse on R/V Horizon during Nova Expedition, Jul...