LOESEL, Johannes (1607-1655). Flora Prussica, sive Plantae in Regno Prussiae sponte nascentes, edited by Johann Gottsched (1668-1704). Königsberg: Georg, 1703. Folding engraved frontispiece and 85 numbered engraved plates on 80 leaves, some tipped in and folding. Nissen BBI 1222 ('unbezeichnet'); Stafleu & Cowan III, 4933. [Bound second with:]
HELWING, Georg Andreas (1688-1748). Florae Campana seu Pulsatilla, cum suis speciebus et varietatibus methodice considerata. Leipzig: Immanuel Titius, . , 100, pp. Etched frontispiece and 12 tipped-in folding plates. Final errata leaf. Nissen BBI 844 ('unbezeichnet'); Stafleu & Cowan II, 2623 (calling for 100 numbered pages only).
HELWING, G.A. Flora quasimodogenita sive enumeratio aliquot plantarum indigenarum in Prussia. Danzig: Joannes Daniel Stollius, 1712. , 74pp. 3 engraved plates. Not in Nissen or Stafleu & Cowan.
HELWING, G.A. Supplementum Florae Prussicae, seu enumeratio plantarum indigenarum post editam Floram quasimodogenitam. Danzig: Johannes Schreiber, [dated 1726 in manuscript]. , 66, pp. 3 tipped-in folding plates. Not in Nissen or Stafleu & Cowan.
Together 4 works in one volume, 4° (201 x 155mm). (Some light browning and spotting, some marginal waterstains.) Contemporary vellum, manuscript title on spine, red edges (title faded). Provenance: 19th-century marginalia giving the latest classifications of each plant, a few MS additions to plate titles in Helwing's first work, bibliographical note dated 1870 (on front pastedown) -- Stadtbibliothek Königsberg (stamp on title verso) -- Robert de Belder (1921-95; sold to Bernard Quaritch Ltd., not included in the sale at Sotheby's, April 1987).
AN UNUSUAL SAMMELBAND OF FOUR CLOSELY-CONNECTED WORKS ON INDIGENOUS PRUSSIAN FLOWERS. Loesel's Flora Prussica was edited by Johann Gotsched, who received the manuscript and plates from Loesel's estate, and fittingly published the work in Königsberg, the university town where Loesel had been professor of medicine (1639-1655). To this the three later works by Helwing, the first containing 12 fine etchings of anemones, form valued additions. ALL RARE.