'The history of Trial by Jury ...'
An essay entitled 'The history of Trial by Jury: its Origin and Progress in the Principality of Wales; and also the History of Trial by Jury in England', awarded a prize at the Abergavenny eisteddfod, 1853.
Transcripts of Breton poems published by Théodore Hersart de la Villemarqué in Barzaz-Breiz, Chants Populaires de la Bretagne ..., with notes and translations into French.
'Madoc: An Essay on the Discovery of America ...'
Letters, 1859-1868, to Stephens mainly relating to the supposed discovery of America by Madog ab Owain Gwynedd and the possibility of the existence of a tribe of Welsh Indians ('y Madogwys'); miscellaneous notes; and press cuttings.