The Sale of Gas Act 1859
WHEREAS it is expedient that the Measurement used in Sales of Gas for Lighting, Heating, and other Purposes, should be hereafter regulated by One uniform Standard, and that all Meters should be stamped as herein-after provided: Be it therefore enacted by the Queen's most Excellent Majesty, by and with the Advice and Consent of the Lords Spiritual and Temporal, and Commons, in this present Parliament assembled, and by the Authority of the same, as follows: