Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 206
ation values. It appears that, owing to the lowcost of production of light by modern could be reduced without affecting the visual vahie of the general illu-mination. It is probably more important Ihatthe illumination of the stones should be well done than is the casewith the composing frames,… … Fig 8—IlIumiLation of ComposiDg Frames—AiraDgenient in single
Lighting
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