Show new chart corrects Cor recta errors the great practical pinc Ucal utility of the magnetic sur survey surey ey made in the pacific ocean by the yacht galilee since 1905 la Is shown by a new magme tle chart from which it appears that the charts charta cha previously used by navigators is in the pacific ocean were erroneous along some much traversed routes to the tha ex tent of from three to five degrees and the errors at times were mat marlc I 1 c errors of this magnitude are of importance in practical navigation where the indications indication i of the tha compass should hould be as accurate as possible |