Spirometer, Krogh, 1934, Basal Metabolism Test

Spirometer_Krogh_1934_Minute_Ventilation_Test

Found at Europeana.Eu.  From an educational film entitled “Methods of measuring metabolism and basal metabolism Krogh and Douglas bag”, Produced by the Department of Physiology, Cambridge University, 1934.

A basal metabolism test with a Krogh spirometer.  Subject is breathing through soda-lime and the disappearance of oxygen is monitored on the kymograph drum.

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