RESEARCHES OF THE DEPARTMENT OF TERRESTRIAL MAGNETISM 



VOLUME 



LAND MAGNETIC OBSERVATIONS 1911-1913 



AND 



REPORTS ON SPECIAL RESEARCHES 



BY 



L. A. BAUER, Director 



AND 

 J. A. FLEMING, Chief Magnetician 



WASHINGTON. D. C. 



PUBLISHED BY THE CARNEGIE INSTITUTION OF WASHINGTON 



1915 



