He visited Romania in 1900 and 1902, after which he denounced the terrible fate of Romanian Jews in "L'Aurore", written in July and August 1900. He also visited Russia where he reported on the dangers facing Jews, but did not have a chance to publish due to illness; and Turkey where he defended the Armenians against persecution. In an 1898 writing in "Pro Armenia", he did not hesitate to denounce the ""Congrès Sioniste de Bâle"" which had publicly honoured sultan Abdülhamid II: "Representatives of the oldest of persecuted peoples, whose history cannot be written, but in blood, send their salutations to the worst of assassins".