Letter published in the Times, February 9, 1911, p.6 b. Osler protests against the condition of the carriages in the train de luxe of the Compagnie Internationale des Wagons-Lits, on which he traveled between Paris and Naples.
Letter to the the London Times, August 29, 1914, p. 6,d. " COMPULSORY ANTITYPHOID VACCINATION- A NECESSARY MEASURE."
(Letter to the London Times, January 15, 1915, p.9,d.) "INOCULATION AGAINST TYPHOID-AN APPEAL TO SOLDIERS".
Letter published in the London Times, November 29, 1918, p.6,c. "GAS WARFARE, A WEAPON TO BE ABOLISHED". letter signed by Norman Moore, Makins, McKenzie Johnston, Freeland Fergus, Joseph O'Carroll, John B. Story, Osler, Clifford Allbutt.
Letter published in the London Times, December 28, 1918, p. 7,c. "THE PREVENTION OF VENEREAL DISEASE- SIMPLE SANITARY MEASURES". Letter signed by Osler, Cheastle, Crichton-Browne, Dawson, Donkin, Ferrier, Godlee, Hill, Mott, Reid, Sequeira.
Clipping from the Times, of July 22, 1919. "TEETOTAL PROPAGANDA- AN UNDESIRABLE CAMPAIGN". Osler's opinion on the prohibition of alcohol.