FEDERAL METEOROLOGICAL HANDBOOK No. 3 
Radiosonde 
Observations 
Supersedes Seventh Edition of WBAN 
Circular P 
Effective January 1, 1969 
0 0301 00659357 & 
U.S. DEPARTMENT OF COMMERCE 
U.S. DEPARTMENT OF DEFENSE 
Washington, D.C. 
] For sale by the Superintendent of Documents, U.S. Government Printing Office, 
Washington, D.C., 20402. Price $1.25. 
