350 ANNUAL REPORT SMITHSONIAN INSTITUTION, 1964 



density and discovered the role of solar electromagnetic and corpuscu- 

 lar radiation in heating the atmosphere. Other research using satellite 

 data was initiated in studies of geodesy. 



Members of the staff presented some 20 papers to scientific meetings, 

 and published SO others in leading scientific journals. The Observa- 

 tory issued 27 special reports on research in space science, ranging 

 in subject from observational data to plans for a flashing satellite for 

 geodetic studies. In the years to follow, literally scores of other papers 

 and reports based on IGY activities were to appear. 



The imaginative vision of 1955 had become a splendid reality. 



