Particles: Ice particles, 1967-1976

(541B) Intrusion of particles on ice, January 3, 1967; (1356B) Composite of four particle pictures, ice, April 10, 1972; (1824B) Ice particles, copy, April 17, 1973; (1948B) Cloud particles, ice, composite, July 24, 1973; (1965B) Micro particles, ice, August 10, 1973; (2009B) Sailplane instrument, intake tube for taking ice particles into sailplane, September 5, 1973; (2043B) Cloud particles, ice, October 17, 1973; (2078B) Cloud particle composite, ice, November 9, 1973; (2222B) Composite of ice particles, copy, March 7, 1974; (2546B) Ice particle composite, September 10, 1974; (3189) Ice particles on lead foil, October 1, 1975; (3302B) Ice particles collected during December 1975 in South Dakota, January 7, 1976.