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  1. Eric Abranson with Pinger on Horizon. When we 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

    • Collection: Scripps Institution of Oceanography Photographs
    • Name: Abranson, Christian-Erik; Horizon (Ship); Nova Expedition; Abranson, Chr, tian-Erik
    • Date: 1967-07
    • Topic: Oceanographic instruments
    • Format: image