Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 194
y operatinga switch either filament could be broughtinto operation and the illumination thusreduced to a suitably low value at acertain hour at night. Mr. W. J. Jones said he had listenedvery carefully to the remarks made byMr. John Darch and was in full agreementwith the comments which he had… … Type of dust-proof hospital unit. hospitals had not received the scientifictreatment that it deserved. He, too, had frequently noted the badmethod of lighting by means of bracketsimperfectly shaded, and had experiencedas a patient the inevitable discomfort. These brackets over the beds shouldbe…
Lighting
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
