1. Consolazio, C. F., R. E. Johnson, andL. J. Pecora: Physiological measurements of metabolic functions in man. New York: McGraw Hill 1963.
2. Cotes, J. E., andR. F. Woolmer: A comparison between twenty-seven laboratories of the results of analysis of an expired gas sample. J. Physiol. (Lond.)163, 36?37 (1962).
3. Douglas, C. G., andJ. G. Priestley: Human physiology: A practical course. 3rd Ed. Oxford: Claredon Press 1948.
4. Lloyd, B. B.: A development of Haldane's gas analysis apparatus. J. Physiol. (Lond.)143, 5 (1958).
5. Pauling, L., R. E. Wood, andJ. H. Sturdivant: An instrument for determining the partial pressure of oxygen in a gas. J. Amer. chem. Soc.68, 795?798 (1964).