Measuring gas exchange, 1911

measuring_gas_exchange_1911

Using a Chauveau valve, the subject’s exhaled volume is measured by a gas meter and analyzed for CO2 and O2 chemically.  Found in “The Human Motor, Or, The Scientific Foundations of Labour and Industry” by Jules Amar, Elsie Mary Butterworth, George E. Wright, published by G. Routledge & sons, Limited, 1920, page 145, but was ascribed to Jules Amar, Journal de Physiologie, March 1911, page 212.

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