SOURCES AND FURTHER READING: This story draws on the service dossier of Samuel Rolfe NAA: B2455, ROLFE SAMUEL EARL; his repatriation file NAA: C138, NC043642-01; and contemporary newspaper accounts. For a brief history of chemical warfare prior to the Great War see Arthur Butler, Official History of Australia Army Medical Service in the War of 1914–1918, vol. III Special Problems and Services (Canberra: Australian War Memorial, 1943). For general histories of gas warfare see L.F Haber, The Poisonous Cloud: Chemical Warfare in the First World War (Oxford: Oxford University Press, 1986); William Moore, Gas Attack! Chemical Warfare 1915–1918 and Afterwards (New York: Hippocrene Books, 1987); Robert Joy, ‘Historical Aspects of Medical Defense Against Chemical Warfare,’ in Frederick R Sidle, Ernest T Takafuji and David R Franz (eds), Medical Aspects of Chemical and Biological Warfare (Washington, DC: The Borden Institute, 1997); Stéphane Audoin-Rouzeau, ‘1915: Stalemate’ in Jay Winter (ed), The Cambridge History of the First World War, vol. I (Cambridge: Cambridge University Press, 2014) pp. 65–88; G. Fitzgerald, ‘Chemical warfare and medical response during World War I’, American Journal of Public Health, vol. 98, no. 4, 2008, pp. 611–625; Amos Fries and C. J. West, Chemical Warfare (New York: McGraw Hill, 1921); Albert Palazzo, Seeking Victory on the Western Front: The British Army and Chemical Warfare in World War I (Lincoln: University of Nebraska Press, 2000).