From Basal Metabolism: Its determination and application. Frank Sanborn editor. Sanborn Company Publishers, 1922. Page 96.
Category Archives: 1920s
Benedict Universal Respiration Apparatus, 1922
Spirometer, Benedict, Portable, 1922
CO2 Production, King Method, 1922
Spirometer, Tissot, BMR measurement via mask, 1922
Haldane Apparatus, Gas Analyzer, 1922
Valve, Tissot, 1922
Douglas Bag, portable collection system, 1922
Spirometer, Sanborn, circa 1920
Sanborn Spirometer, circa 1920
from: http://www.museevirtuel-virtualmuseum.ca/Search.do?ig=on&R=IMAGES_ACPO6275&lang=en
Arcade Spirometer, circa 1920
Penny Arcade Spirometer at Playland Amusement Park, Rye, New York. Probably from the 1920’s. From westchester.gov.com
http://collections.westchestergov.com/cdm/singleitem/collection/ppl/id/746/rec/2