Light and lighting . ure of Illuminant. Period. Public lamps. • onsumedcub. ft. p r hr. C P CR per cub. ft. Oil lamps .. u ly gas burnersIron-tip em burners e burnersBpe -me ..I ..I Boenl inverted low preesureIncandescent inverted high up to 1800about 1810 I860 1878 1*78—1895 I-:..1908— IM!1914 3(?)5—8 5—6 in U ?1\—84li -70 i-l(?)3 12 1530—40 50- 2000—1,000 KT) :i6 11 50—60 An jmportanl point to notice in thistable i. the rate of progbecome increasingly rapid during the lastfew jears. Previous to 1882 few radicalimprovements were made in street light-ing, which remained subst
Light and lighting . ure of Illuminant. Period. Public lamps. • onsumedcub. ft. p r hr. C P CR per cub. ft. Oil lamps .. u ly gas burnersIron-tip em burners e burnersBpe -me ..I ..I Boenl inverted low preesureIncandescent inverted high up to 1800about 1810 I860 1878 1*78—1895 I-:..1908— IM!1914 3(?)5—8 5—6 in U ?1\—84li -70 i-l(?)3 12 1530—40 50- 2000—1,000 KT) :i6 11 50—60 An jmportanl point to notice in thistable i. the rate of progbecome increasingly rapid during the lastfew jears. Previous to 1882 few radicalimprovements were made in street light-ing, which remained substantially thesame many years. Bui since 1900 the gas has added immensely to the brilliancyof the lighting in many of our mainstreets. I am informed that during thelast ten years the tot;.! oandle-powex ofthe lamps in the area of the Gas Light andCoke Co. has inn eased from 1, to4,—an increase of over 125 per. FlG. 2. High-Pressure Lights OOtside the Brixton Town Hall. THE ILLUMINATING ENGINEER (march) 12r cent. In this connection I might referto an excellent paper read before theIlluminating Engineering Society in 191011by Mr. F. W. Goodenough, who has beenso closely associated with the greatprogress of high-pressure gas in the GasLight and Coke area. Electric Lighting. The use of electricity for public lightingin London seems to date from about theyear 1878, when several experimentalinstallations were attempted. The Chair-man of to-night, Colonel Crompton, wasassociated with some of the very earliestpioneering work in this direction. In 1877he lighted his own factory by electricity,and by 1878 he was already constructingelectric arc lamps of his own 1881 he was responsible for lightingseveral railway stations by electricity,and about the same year the RoyalCourts of Justice were illuminated byincandescent lamps—one of the first largeinstallations of this kind in E
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