Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 31
Lighl Syndicate, Ltd., inconnection with incandescent gas burners,namely, the use of special Vitreosilsmall protectors, composed not <>t _hut uf silica, fused electrically at a hightemperature. These small intensi-fiers, i< is stated, are able t<> withstandiK.t mii1\ greal heat, but…
Lighting
Internet Archive · University of Toronto Libraries · Public Domain Mark 1.0. Free to use for anything.
