539.722
Car
C
 Carnegie Institution of Washington. Dept. of Terrestrial Magnetism 
    Comic-ray results: Huancayo, Perú, january 1946-december 1955, Instituto Geofísico de Huancayo; Cheltenham, Maryland, march 1936-december 1955, U.S. Coast and Geodetic Survey, Cheltenham Magnetic Observatory; Christchurch, New Zealand, january 1974-december 1955, Departament of Scientific and Industrial Research, Magnetic Survey Division; Godhavn, Greenland, january 1947-de-
     (Continúa ficha 2)