De Rerum Natura,
De Rerum Natura,
Celtic folklore, institutions,
Celtic folklore, institutions,
The early settlers of Wales,
The early settlers of Wales,
Anthropology and archaeology,
Anthropology and archaeology,
Notes on Juvenal,
Notes on Juvenal,
A Sanskrit vocabulary,
A Sanskrit vocabulary,
Y Gogynfeirdd,
Y Gogynfeirdd,
Welsh grammar,
Welsh grammar,
Comparative philology,
Comparative philology,
Early British history,
Early British history,
A Welsh dictionary,
A Welsh dictionary,
Early Welsh literature,
Early Welsh literature,
'The Black Book of Carmarthen',
'The Black Book of Carmarthen',
Y Gododdin,
Y Gododdin,
Celtic archaeology,
Celtic archaeology,
Esboniad ar Hosea,
Esboniad ar Hosea,
