- /1 12 Apr 1914, Scholarly: E.G. Coulton.
- /2 May 1914, Scholarly: Lectures at University of Manchester. Belgian democracy.
- /3 17 May 1914, Scholarly: Lectures U.K. 25 & 26 Feb 1915.
- /4 23 Jun 1914, Scholarly: Lectures. University of Manchester.
- /5 26 Jul 1914, Scholarly: Lectures. University of Manchester.
- /6 n.d. Dec 1914, Scholarly: Lectures. University of Manchester.
- /7 6 Dec 1914, Scholarly/: War: Lectures. Belgian democracy.
- /8 31 Dec 1914, Scholarly: War: Lectures, change of date.
- /9 n.d. Feb 1915, Scholarly/War: Difficulty of communications. Preface to 'Petit Livre'.Belgian democracy.
- /10 n.d. Feb 1915, Duplicate of /9
- /11 15 Mar 1915, Scholarly/War: Belgian democracy.
- /12 11 Apr 1915, Scholarly: Belgian democracy.
- /13 26 Mar 1919, Scholarly: Belgian democracy.
- /14 6 Oct 1920, Personal.
- /15 5 Mar 1922 Scholarly: France and England. InternationalHistorical Congress, Brussels.
- /16 15 Mar 1922, Scholarly: France and England. D.Litt.
- /17 11 May 1922, Personal.
- /18 23 Jun 1922 personal.
- /19 24 May 1926.
- /20 23 Dec 1926, Personal: thanks for 'The English Parliament and Public Opinion'.
- /21 19 Feb 1928, Academic: thanks for 'National and International Co-operation in Historical.Scholarship.'
- /22 17 Feb 1929.
Language: French.