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...
Bausch and Lomb abbe type refractometer measures the refractive index, how light passes through, an item. It was also used to determine the concentrations of solutions. There is a thermometer missing, which that helped to keep the liquid at a...
Bausch and Lomb abbe type refractometer measures the refractive index, how light passes through, of an item. It was also used to determine the concentrations of solutions. There is a thermometer missing, which that helped to keep the liquid at a...
