[113] The Surveyor of Folkestone says: “Sugg’s self-acting regulator is used, adjusted as nearly as may be practicable to consume 4 feet per hour, and so very satisfactory is this apparatus that for the last two years, after burning 7294 hours, it is found by the average meter to have consumed 29,227 feet, as against 29,176 feet as per regulator, being only 51 feet in excess of that which the apparatus is adjusted to consume.” _Vide_ Ellice Clark on gas in Public Streets, ‘Proceedings of the Association of Municipal and Sanitary Engineers and Surveyors,’ vol. ii. P. 193. [114] Bracket lamps may not be fixed by an urban authority to houses within their district without the previous consent of the owners of such houses. _Vide_ ‘Fitzgerald’s Public Health Act,’ third edition, p. 182. [115] Meeting of the ‘Société Technique de l’lndustrie du Gaz en France’ in 1882. [116] “Faure’s” batteries can store electricity, but at present this cannot be manipulated on a very large scale. [117] Published by Messrs. Spon, 16 Charing Cross, London. [118] _Vide_ ‘Proceedings of the Association of Municipal and Sanitary Engineers and Surveyors,’ vol. vi. p. 9 _et seq._ [119] Siemens’ light at Blackburn cost 2_s._ per hour per lamp of 6000 candle power. [120] _Vide_ ‘Proceedings of the Association of Municipal and Sanitary Engineers and Surveyors,’ vol. viii. p. 171, &c. [121] On this point Mr. W. G. Laws, Borough Engineer, Newcastle-upon-Tyne, says: “Taking as an example a street a mile long, lighted by the arc system, the arrangement would probably be lamps 60 yards apart, placed alternately on either side, giving 30 lamps or 60,000 candles at a cost of about 800_l._ per annum. If lighted by ‘incandescent lamps’ we should have them placed about 30 yards apart on both sides: that is, 120 lamps giving 2400 candles at a cost of about 420_l._ per annum. The number of gas lamps for the same distance might be 150, giving about 2250 candles at a cost of 300_l._ per annum.” (‘Proceedings of the Association of Municipal and Sanitary Engineers and Surveyors,’ vol. viii. p. 65.) CHAPTER XIV. STREET NAMING AND NUMBERING. It was not until the commencement of the present century that inconvenience was apparently felt from the want of any distinguishing names of streets, or numbers to houses, either in London or provincial towns; the first Act of Parliament on the subject being one passed in the year 1819, which gave powers to vestries and district boards to put up the names of streets, and even then for some considerable period afterwards houses or premises were not marked with numbers, but with distinguishing trade signs or names. The Towns Improvement Clauses Act 1847, however, contains the following clauses which are incorporated with the Public Health Act 1875, by the 160th section of that act: