WILLIAMS (John). Faunula Grustensis: being an outline of the natural contents of the Parish of Llanrwst; Comprehending some account of its general history, commerce and agriculture; also, a trioglott catalogue (in Latin, English, and Welsh) of the animals and plants found in it, with some notes thereon...1830

Llanrwst: Printed by John Jones, First edition, 12mo (137 x 79 mm), 148pp., fore-edge and lower margins cut-close, without free-endpapers, oirg. cloth-backed printed boards. One of the great rarities of local natural history, printed on a home-made printing press at Llanrwst, Conway, Wales. John Jones (1786-1865), printer and inventor, "He kept a paper and bookshop, and printed much miscellaneous work for the locality. Sometime ( before 1817) he constructed three presses to the Ruthven design, so called after its inventor, Alexander Ruthven, which he then used for all his printing work. He also learnt to cast his own type and used many of his own letters and characters for the rest of his life."—(DWB). In 1936 the Science Museum acquired John Jones' press and equipment. Freeman, 4015.