Order of Secretary of State (No. 9) (Acetylene) dated June 23, 1919, relating to Compressed Acetylene contained in a Porous Substance
Whereas by an Order in Council, dated 18th June, 1914,(a) made under Section 104 of the Explosives Act, 1875, it is declared that acetylene when liquid, or when subject to a certain degree of compression, or when in admixture with atmospheric air or oxygen gas, shall be deemed to be an explosive within the meaning of the said Act:

And whereas by the said Order in Council it is provided that if it be shown to the satisfaction of the Secretary of State that acetylene declared to be an explosiv...