140. SUMMARY, FACTORS AFFECTING COMPOSITION OF RESPIRED AIR: MAN (Continued) 



Part V: O2 INHALATION (Concluded) 



Section 2: N^ in Expired Air 



N2 as an Increment over the N2 contained in an inspired 

 gas mixture containing 1% of N^ in O^. Subjects at rest, 

 submerged in water. Ranges in parentheses are esti- 

 mate "c" of the 95% range (cf Introduction). 



Contributor : Craig, F. N. 



Reference : Blevins, W. V., Frankel, H., Garren, H., 

 and Craig, F. N., Chemical Corps Medical Laborato- 

 ries Research Rept. No. 216, Army Chemical Center, 

 Maryland, 1953. 



Part VI: ADDED RESISTANCE 



The effect of added resistance on the composition of alveolar 

 air. Resistance the same on inspiration and expiration. 



III Recalculation of published data. 

 ance. /3/ After added resistance. 



IZl Before added resist- 



Contributor : Craig, F. N. 



Reference : Cain, C. C, and Otis, A. B., J. Aviat. M. 20:149, 

 1949. 



Part VII: ADDED DEAD SPACE 



Average of three subjects. 



Contributor : Craig, F. N. 



Referen ce: Swann, H. E., Jr. (thesis), Univ. of Maryland, 1950. 



266 



