Letter from Elton Mayo to Mr. M.K. Stevenson regarding the results of taking blood pressure and pulse measurements of the workers as a measurement of fatigue. This was to ascertain if rest periods had any effect on the fatigue of workers.
Included in this group are tables of vascular skin reaction readings as a measurement of fatigue. There is also an abstract of chapter 5, concerning the physiology and psychology of fatigue, from Edgar James Swifts book Psychology and the days...