Show vagaries Va garlet of the plumb line one of the curious thires that men of science have discovered in their 1 innumerable efforts to measure and imad map the earth with the least possible i error la is the fact that there are places where the direction of a plumb line Is not vertical irregularities of density in the crust of the globe m may a y produce this phenomenon A remarkable instance has been found in the island of porto rico where the deviation from tile the V vertical la Is so BO great that in mapping the island the northern and southern coast lines as ae shown bho wn on the older maps had each to be moved inward halt half a mile 11 II lust rated sunday Al magazine agazine |