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INTERNATIONAL GEOPHYSICAL YEAR 

 WORLD DATA CENTER A 



National Academy of Sciences 

 2101 Constitution Avenue, N.W. • Washington 25, D. C, U.S.A. 



World Data Center A consists of the following eleven archives: 



Airglow and Ionosphere: 



IGY World Data Center A: 



Airglow and Ionosphere 

 Central Radio Propagation Laboratory 

 National Bureau of Standards 

 Boulder, Colorado, U.S.A. 



Aurora (Instrumental): 



IGY World Data Center A: 



Aurora (Instrumental) 

 Geophysical Institute 

 University of Alaska 

 College, Alaska, U.S.A. 



Aurora (Visual): 



IGY World Data Center A: 



Aurora (Visual) 

 Hollister Hall 

 Cornell University 

 Ithaca, New York, U.S.A. 



Cosmic Rays: 



IGY World Data Center A: 



Cosmic Rays 

 School of Physics 

 University of Minnesota 

 Minneapolis 14, Minnesota, U.S.A. 



Geomagnetism, Gravity, and Seismology: 



IGY World Data Center A: 



Geomagnetism, Gravity & Seismology 

 Geophysics Division 

 U. S. Coast and Geodetic Survey 

 Washington 25, D. C, U.S.A. 



Glaciology: 



IGY World Data Center A: 



Glaciology 

 American Geographical Society 

 Broadway at 156th Street 

 New York 32, New York, U.S.A. 



Longitude and Latitude: 



IGY World Data Center A: 



Longitude & Latitude 

 U. S. Naval Observatory 

 Washington 25, D. C, U.S.A. 



Meteorology and Nuclear Radiation: 



IGY World Data Center A: 



Meteorology and Nuclear Radiation 

 National Weather Records Center 

 Asheville, North Carolina, U.S.A. 



Oceanography: 



IGY World Data Center A: 



Oceanography 

 Department of Oceanography and Meteorology 

 Agricultural & Mechanical College of Texas 

 College Station, Texas, U.S.A. 



Rockets and Satellites: 



IGY World Data Center A: 



Rockets and Satellites 

 National Academy of Sciences 

 2101 Constitution Avenue, N.W. 

 Washington 25, D. C, U.S.A. 



Solar Activity: 



IGY World Data Center A: 



Solar Activity 

 High Altitude Observatory 

 University of Colorado 

 Boulder, Colorado, U.S.A. 



should be addressed to the appropriate archive listed above. 



