Williams, John Faunula Grustensis, being an outline of the Natural Contents of the Parish of Llanrwst: printed by John Jones, 1830. 12mo, modern green half morocco gilt, some foxing; [Idem] - John Edmondson, editor Faunula Grustensis , being an outline of the Natural Contents of the Parish of Llanrwst. Cambridge: Scholars Publishing, 2019. First edition, 8vo Footnote: Note: "Williams' Faunula was only the second account of the natural history of a small area to be published in Wales after Hugh Davies's Welsh Botanology... He rercords the often poetic, and usually highly descriptive, Welsh names for the fauna and flora." [Edmondson, p.119]