EFFECTS OF DEPRIVATION OF OXYGEN 



227 



Ejact condition at clou c 



May 7, 1919. No. 6925, first lieutenant, Sanitary Corps, single, thirty, psy- 

 chologist, non-flyer. 



One hour in air as passenger. Run was preceded by 13 minutes' rebreathing 

 during which the oxygen was replenished as consumed. 



Had previously transliterated all the material once under normal conditions. 

 Hence little improvement over initial performance was shown. 



A slight and transient impairment occurred during the 15th and 16th minutes 

 and partially overcome by increased effort. Compensation was effective for 

 only a short time. Subject was near collapse at time of removal. 



