Brief an Professor [Gottfried Kinkel]
London, 22.02.1866 [22. Februar 1866]Brief an Professor [Gottfried Kinkel]
London, 09.03.1866 [9. März 1866]Brief an Professor [Gottfried Kinkel]
London, 22.03.1866 [[ohne Datum, vor 22.03.1866]]Brief an Professor [Gottfried Kinkel]
London, 11.06.1866 [11. Juni 1866]Brief an Professor [Gottfried Kinkel]
London, 15.08.1866 [15. August 1866]