David Gordon and Son

of 33 Cornill, London

TO GAS COMPANIES. The daily increasing use PORTABLE GAS in the Metropolis, and its extension to Manchester and Edinburgh, is a most satisfactory evidence of the value of that species of light. That it is demonstrably the safest mode of using Gas has always been asserted the Inventor, and has now been proved by experience, as among the many thousand LAMPS constantly in use in London not even an approach an accident has ever occurred. That a Portable Gas Establishment would be a profitable addition to every Gas Work may be ascertained by any one who will investigate the subject, and that in many cases Gas can be delivered in that manner even cheaper than by means of pipes on a large Establishment the cost condensing, filling, and distributing the Gas will not exceed from 3s. to 3s. 6d. per thousand cubic feet. Gas Companies, desirous to adopt Portable Gas, may be supplied with Lamps in any quantity, upon application to the Subscribers hereto, and when any considerable Establishment is intended to be formed, Mr. David Gordon will be happy to give every advice and superintendance which may be thought useful in preparing and erecting the Condensing Pumps, Filling Tables, &c.
33, Cornhill, London. DAVID GORDON & SON.
N. B. The PORTABLE GAS LAMP, with or without Sir H. Davy's Safeguard, would be found most economical and useful in Coal and other Mines, and where there is much water pouring down, it has the peculiar advantage that when held in an horizontal position, the heaviest shower will not extinguish it. The spare power at almost every Mine might be employed to work the apparatus for filling the Lamps.'

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