Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 333
each installation is BtatedtO be 100 marks (£6). We learn that the lload Hoard in this country is also interesting itself in thisproblem of providing signals for motorists. It appears that the first of theM beacon lights has ben erected on the London and Folkestone road near Bidcup, and itis… … Skit. Ii of Road-sign, fed by dissolvedtylene and equipped with flashlightiral is It is staU d that aoperated in the way described ai>>\«will last for about 30 days. THE ILLUMINATING ENGINEER (june) 319 AN INTERESTING FORM OF INDIRECT PORTABLE UNIT. The illustration shows a room in theHyde…
Lighting
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