Report compiling data gathered from employee comments on standard hours and steady work during interviews held from 1929-1931. It also includes some information about home conditions which was collected during 1930-1931 and then grouped by mental...
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...
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...
