burner – if the burner has one – so as to obtain a maximum illumination and quietly burning a lamp.
 
Open-flame burners should not be used because they require:

a. For a given amount of illumination about four times as much gas as an incandescent mantle lamp.

b. The maintaining of obsolete candlepower standards which can  be of interest to only a very small percentage of the total number of consumers and squarely against the best service interests of the majority of the consumers. The gas used in open-flame illumination is so small as to be negligible in comparison with the total volume of sales which the consumers are generally interested in. ^[15]

 

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^[15] For further discussion see Technologic Paper 110, entitled "The Influence of Quality of Gas and Other Factors Upon the Efficiency of Gas Mantle Lamps," U. S. Bureau of Standards, Washington, D. C.




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