The Hemisphere: Diving for Treasure

Wearing a 225-lb. suit and helmet. Diver Jack Coghlan, 25, slipped through a hole in the 14-in ice and out of sight in Port Arthur harbor last week. On bottom at 25 ft., he pushed through waist-deep silt to a wall of sheet-metal piling. In 39° water he carefully passed his rubber-gloved hands over the foundation, reporting what he felt and what little he could see into a telephone linked with the surface, and thought to himself, "Life could hardly be rosier these days."

As the lakehead's only full-time professional diver, Coghlan was checking the foundation of a grain elevator, a chore...

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