BACON, FRANCIS, Baron Verulam, Viscount St. Albans. The Twoo Bookes...Of the Proficience and Advancement of Learning, divine and humane. London: [Thomas Purfoot and Thomas Creede] for Henrie Tomes 1605. Small 4to, 181 x 140mm. (7 1/8 x 5 1/2in.), contemporary limp vellum, lacks ties, cover wrinkled and stained on upper cover, dampstained throughout, most visibly at front, lacks final leaf blank, green morocco gilt pull-off case. FIRST EDITION, without the 2 leaves of errata (issued later). Gibson 81; Grolier/Horblit 8a; Grolier Langland to Wither 12; Pforzheimer 36; STC 1164.