Transport: Queasiness Masked

For years U. S. airlines have known a lot about passenger discomfort at not unusual flying altitudes between 10,000 and 15,000 feet. But they have done little to allay it beyond providing 105-lb. registered nurses, and handy cardboard containers.

Last week Northwest Airlines got practical about the problem, announced that it was installing plane oxygen systems which will : 1) cure airsickness, 2) prevent heart palpi tation and hard breathing at high altitudes, 3) make flying comfortable at cruising levels up to 30,000 feet, 4) prevent the painful sensation of having one's ears stopped up in descents from flights.

Northwest chose the light-weight...

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