Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 98
rbons to be adjustedwhile the searchlight is in operation.In warfarethis is considered an importantpoint; for, should the light be extin-guished for a moment, the object onwhich it is playing (aircraft or warship)can alter its position and make use of theperiod of darkness to approach… … 92 THE ILLUMINATING ENGINEER (fee. VERITYS LTD. NEW CATALOGUE. In our last issue* we drew attentionto a pleasing little booklet on fixturesby Mr. George Verity. We have nowbefore us a more elaborate publication,the enlarged 2nd edition of Vol. III. ofthe catalogue of fixtures just issued byVeritys…
Lighting
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