Vermorel gas dispersal spray, May 1915
Here we see a two-man team from the 1st Cameronians using a Vermorel Spray, a device designed to help disperse poisoned gas in trenches. The device sprayed 'hypo solution', a mix of chemicals that included Sodium Hyposulphite, a chemical used in photographic processing. This chemical mix neutralised a number of the poisoned gasses used during the First World War.
Many thanks to Osprey for allowing us to use this picture, which comes from:
Trench, Stephen Bull.
Looks at the evolution of the defensive lines on the Western Front of the First World War, from the thin lines of 1914 to the elaborate defensive networks of the late war period and the weapons used to try and break the deadlock. Supported by some fascinating wartime illustrations from military manuals, along with contemporary trench maps. [read full review
How to cite this article:
Rickard, J (19 May 2014), Vermorel gas dispersal spray, May 1915 , http://www.historyofwar.org/Pictures/pictures_vermorel_gas_dispersal_spray.html