82 



Land Magnetic Observations, 1914-20 



SOUTH AMERICA. 

 Bolivia. 



1 Needles No. 1 and No. 3 of universal magnetometer 19. 



: Needles No. 5 and No. G of universal magnetometer 20. 



3 Needles No. 1 and No. 3 of universal magnetometer 19 and needles No. 5 and No. 6 of universal magnetometer 20. 



* Needle No. 2 only at 15.6ft. 



