'Combustible matter' : Iolo Morganwg and the Bristol volcano /
Constantine, Mary-Ann.
University of Wales Centre for Advanced Welsh and Celtic Studies.
Aberystwyth : Canolfan Uwchefrydiau Cymreig a Cheltaidd Prifysgol Cymru,
2003.
Includes bibliographical references.
Iolo Morganwg, 1747-1826
Geology
Geology