Oxygen and Everest

THE discussion at Section I of the British Association, following Prof. J. Barcroft's paper, as well as Dr. Greene's article¹ and the correspondence from Dr. Greene and Mr. N. B. Odell² which have followed, on ``Oxygen and Everest'', suggest that there is no accord among physiologists as to whether oxygen may be of assistance to climbers at very high altitude. In reality, Dr. Greene's ``oxygen school'' and ``no-oxygen school'' do not exist at all. All physiologists agree in believing that the limiting factor of altitude is, roughly, the alveolar partial pressure of oxygen.