Anatomie et Physiologie de l’Orchestre [An Occult Treatise of Musical Science] by Frederick Delius and Dr Encausse Papus, Chamuel, Paris 1894; A Translation and Commentary by Paul Mathews, Theoria – Historical Aspects of Music Theory vol. 15 2008 pp.63-108

‘The Future of Opera’ (newspaper article) 1919; in Composers on Music: An Anthology of Composers’ Writings ed. S Morgenstern, Faber 1958

‘Musik in England im Kriege’, Musickblätter des Anbruch, Vienna November 1919; translated by L Carley as ‘Music in England during the war’ in Delius Society Journal 32 1971 p.6

‘At the Cross-Roads’, The Sackbut September 1920 pp.205-8; reprinted as ‘The Present Cult: Charlatanism and Humbug in Music’, The British Musician and Musical News November 1929 pp.304-7; in Composers on Music: An Anthology of Composers’ Writings ed. S Morgenstern, Faber 1958; in Delius Society Journal 33 1972 pp.17-21; in A Delius Companion ed. Christopher Redwood, John Calder 1976 pp.37-42

‘Recollections of Strindberg’, The Sackbut December 1920 pp.353-4; reprinted in Delius by Peter Warlock, Bodley Head 1923; in ADAM nos. 455-467 1985 pp.55-57; in Delius – A Life in Letters vol. 2 by Lionel Carley, Scolar Press/Delius Trust 1983

Der Weisse Neger – Ein Leben zwischen den Rassen by James Weldon Johnson with a foreword by Frederick Delius, Frankfurter Societäts-Druckerei 1928, pp.9-10