H. 0. No. 226 



HANDBOOK OF MAGNETIC COMPASS 



ADJUSTMENT AND COMPENSATION 



SECOND EDITION 



NYE S. SPENCER 

 Electrical Engineer 



AND 



GEORGE F. KUCERA 

 Lieutenant U. S. N. R. 



April 1945 



Approved by 

 UNITED STATES NAVY DEPARTMENT 



BUREAU OF SHIPS 

 Washington, D. C. 



UNITED STATES 



GOVERNMENT PRINTING OFFICE 



WASHINGTON : 1945 



For sale by the Hydrographic Office, Washington, D. C. • - - . . . Price $1.00 



