GESNER, CONRAD. Historiae animalium. Lib. V. qui est de Serpentium natura -- Historiae insectorum libellus, qui est de scorpione. Zurich, 1587. Woodcut illustrations in text. 2 vols., folio, modern cloth backed boards; lacks blanks o8 and B8. FIRST EDITION, of the fifth book, published 29 years after the fourth book. Adams G-539. (2)