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



Part I: VOLUNTARY CONTROL 



Section 1 : Breathholding 



Ranges in parentheses are estimate "c" of the 95% range (cf Introduction). 



Contributor : Craig, F. N. 



Reference : Hill, L., and Flack, M., J.Physiol., Lond. 37:77, 1908. 



Section 2; Voluntary Hyperventilation 

 Subjects at rest. 



/ 1 / Recalculation of published data. 



Contributor : Craig, F. N. 



Reference : Sunahara, F. A., Girling, F., Snyder, R. A., and Topliff, D. , J. Aviat. M. 

 28:13, 1957. 



Part H: EXERCISE 



Contributor : Craig, F. N. 



Reference : Douglas, C. G., and Haldane, J. S., J. Physiol., Lond. 45:235, 1912-1913. 



Section 2; Effect on Composition of Expired Air 

 Bicycle ergometer. 



/ 1 / Recalculation of published data. 



Contributor : Craig, F. N. 



Reference : Bock, A. V., Vancaulaert, C, Dill, D. B. 

 L. M., J. Physiol., Lond. 66:136, 1928. 



Foiling, A., and Hurxthal, 



263 



