Show New Chart Corrects Errors Tho great practical utility of the magnetic survey made In the Pacific ocean by tho yacht Galilee since 1905 Is shown by a new magnetic chart from which It appears that the charts previously used by navigators In the pacific ocean were erroneous along some muchtraversed routes to the extent ex-tent of from three to five degrees and the errors at times were systematic syste-matic Errors of this magnitude are of Importance In practical navigation whore the Indications of tho compass should be as accurate as possible |