Mystery of North Sea Will Be Lure Many Explorers

Byrd and Wade Will Lead American Expeditions Into Ice Bound North

NEW YORK, March 1 (AP)—The urge that sent Hendrik Hudson battling through polar seas in 1807 in search of a northwest passage to the spice islands of the east today still stirs the blood of modern explorers who seek to solve the mysteries of the northern seas.

At least six expeditions hope this summer to reach the north pole, or to find new lands hidden away in the fields of unknown ice.