EFFECTS OF DEPRIVATION OF OXYGEN 



215 



Ciul April 25. 1919 8: 



E.ct condition at clox of mi 



S'!T."* aeaioved f ran'experliiien t "by clinician _ffni\Meiy~ __'."Z'_ _ I ___ 



Prir.ce ...... Ploll , d b ,,Pr 



Dim. B. P. Pul Pre 



33i^ ..... r'o 



.t,. Low.y o , * It '.,,_21_ 6o ,, b _ 



April 25, 1919. No. 6865, first lieutenant, Air Service, pilot, twenty-six, 

 single, salesman, high school education, football team, 1912-1913. 



Five hundred hours flying, 425 overseas ; none over lines ; no crashes. 



Slightly disturbed by insertion of mouthpiece. Unusually slow from begin- 

 ning; accurate, speed increased slowly with practice. Deterioration began in 

 neighborhood of 11 per cent oxygen, in form of slowing of responses. Subject 

 attempted to compensate by greatly increased effort. Experiment terminated 

 prematurely by clinician. 



