LIGHTING STREETS.
Gas v. Electricity -- Public Health Act on lighting -- Different hours
at which public gas lamps are lighted -- Hints for a contract with a
gas company -- Supply by meter -- Objections to meters -- Regulators
-- Lamp-posts -- Lanterns -- Burners -- Numbering lamps -- Formula for
determining distance of lamps -- M. Servier on spreading light
uniformly -- Tables of different lights -- Points to be considered in
public lighting by electricity -- Motive power required -- Machinery
necessary -- Regulations as regards fire risks -- Lamps -- Value of
electric light -- Difficulty of photometrical measurement -- Cost of
electric light -- Mr. Shoolbred’s tables -- Comparative cost on Thames
embankment -- Value of these investigations -- Acme of all lighting
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