Respiration Apparatus, Closed Circuit, 1945

Respiration_Apparatus_Closed_Circuit_1945

Miniature water-seal spirometer used with a close-circuit system for measuring oxygen uptake in small animals.  The animal(s) to be studied were placed in the small chamber at the right.  A blower motor moved air from the chamber through a soda-lime absorber (not shown) and the overall volume of the system was monitored by the spirometer.  The spirometer was identified as a Benedict-Roth-Collins.  From Bioenergetics and Grown by Samuel Brody, Published by Reinhold Publishing, NY, 1945.  Chapter 12, page 330.  Found on the website BeefEfficiency.org.

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