London: Ray Society, 1861-1864. Folio, 29 handcoloured lithographed plates. Publisher's quarter cloth and papered boards with title labels, corners a little bumped but a very good copy.

John Blackwall (1790-1881) was a pioneering arachnologist, correspondent of Charles Darwin, and one of the first naturalists to be interested in spiders of very small sizes.

BM(NH) p.169; Nissen ZBI, 380.