202 



H. M. JOHNSON AND FRANKLIN C. PASCHAL 



i it do* oi tot Cymotie; eanelpuj_ 



April 18, 1919. No. 6863, first lieutenant, pilot, twenty-six, married, mining 

 engineer, college education. 



Three hundred hours flying. Ace. 



Suffering from cold. Only 4 hours sleep previous night. Stale. Tired of 

 flying. When taken off was troubled by insomnia. 



Initial performance; accurate, fairly rapid. Steady improvement with prac- 

 tice. Deterioration expressed in diminished speed beginning in 22d to 23d 

 minute, and accompanied by controlled fall in diastolic blood pressure. No 

 errors until last set. Letters quite legible to the last. 



