Types of material include letters, carbon copies, journal articles, photographs and scientific research. Correspondence arranged chronologically pertaining to Woodcock's work aboard the research vessel Atlantis, 1930-1939, and work with the Navy on the smoke screens at sea project, 1944-45. Research into atmospheric sea salts and sea salt nuclei 1947-1986; Project Shower research into warm rain in Hawaii, 1954-1957; and Hawaiian cloud physics, 1952-1965. Also included is correspondence pertaining to Woodcock's study of Hawaiian rainfall, 1967-1972; atmospheric studies at the volcano Mauna Kea, 1965-1977; permafrost at Mauna Kea, 1969-1977; "mountain breathing" at Mauna Kea, 1976-1979; and Lake Waiau, 1965-1985. Correspondence dealing with Woodcock's research into sea salt, and studies of canal fog, 1979-1986. Other topics of correspondence include: physalia, 1944-1970; soaring gulls, 1937-1938; wave riding dolphins, 1946-1953; sargassum, 1947-1949; bursting bubbles, 1976; hail, 1976; Woodcock's research into his CIA file, 1977; hurricanes, 1985; slush and ice on lakes and ponds, 1987; rain droplet formation in clouds, 1990, study of Hawaiian trade winds, 1991; Woodcock's reception of the American Meteorological Society's lifetime achievement award, 1994; and budgetary matters. Correspondents include Columbus Iselin, director of the Atlantis research project, 1930-39, atmospheric scientist and meteorologist Duncan Blanchard, 1955-1995; U.S. Navy atmospheric scientist James Hughes, 1955-1984; chemist James Lodge, 1955-1965; meteorologist and atmospheric scientist E.G. "Taffy" Bowen 1955-1965; and atmospheric researcher Erik Erikkson, 1955-1965; oceanographer Robert Duce 1965-1977; researchers Jack Warner and Sean Twomey, 1969-1977; Charles Penn, 1981-1985; Irving Friedman, 1977-1979; Charles Knight, 1989-1991; as well as Vincent Schaefer, Allen Faller and Irving Friedman. See the box and folder list for a detailed description of the contents of the containers.