Galilee. 1905-1908 



Cwiie«ie. 191 1-1916 "* 



Erebu. .nd Terror. 18W-I843 Nov«rm. I8S7-I860 



Gudle. 1874-1876 • • ♦ ♦ Discovery, 1902-1904 



Chlett, 1914 (Atlantic) 



Oollenger, 1872-1876 



Coast and Geodetic Survey. 1903-1913 < 



Fig. 12. Tracks of chief vessels on which magnetic observations 

 were made in the Pacific Ocean, 1839-1916 



55 



