Medicine: Freezing & Stifling

Last week the methodical English physiologist who developed the efficient gas masks used by the British during the War appeared at Yale University to describe how he felt when he 1) almost froze himself to death; 2) almost suffocated himself.

Born 64 years ago in Ireland, Sir Joseph Barcroft has been Cambridge University's professor of physiology for ten years.

Making himself the subject of deathly experiment is his specialty. To show that men have more stamina than dogs, he remained in a chamber filled with hydrocyanic acid gas until a dog died, then...

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