Medicine: Seagoing Guinea Pigs

Aboard the U.S. submarine Haddock, tied up beside a barge in Connecticut's Thames River, a watertight, airtight door was opened for a few moments each morning last week—just long enough to let five scientists into the sub's inner compartments. Then the door was shut and dogged down again. The scientists found that half of the 22 enlisted men on board, instead of going to breakfast, were lolling in their bunks. Far from committing a flagrant breach of discipline, they were performing a valuable duty for which the Navy had invited volunteers. They, and...

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