MEDICINE & ALCHEMY. BAIER, Johann Jacob (1677-1735) & Johann Wilhelm WIDMANN (1690-1743). Q.D.B.V. Adagia quaedam Medicinalia Doctrinae Promiscuae Discursibus illustrata. [Altdorf]: Kohlesius, 1711, 4to. pp. (iv), 20. Roman and Italic letter, a little Greek and Gothic, printed notes below text, one decorative tailpiece, page numbers within decorative brackets in first two pages. OCLC lists only a copy in Germany. RARE. With PAGE, John, Esq. Receipts for Preparing and Compounding the Principal Medicines made use of by the late Mr. Ward. London: Henry Whitridge, 1763. 8vo. ff. (ii), 33. Light browning and light staining on title page. Disbound. Joshua Ward (1685-1761) was an English doctor, most remembered for the invention of Friar's Balsam. Osler called him “perhaps the most successful and the best of the 18th- century quacks”. Wellcome IV, p.283 (noting this issue uniquely has a letter dated 25 Feb. 1763 printed on verso of last leaf). Provenance: unidentified ownership inscription. With CHARLIER, Eugène. Observation d’un Poulet Pygomèle Présentant une Nouvelle Varieté de ce Genre de Monstruosité. Liége: J. Desoer, 1868. 8vo. pp. 23, blank. One lithography depicting a chick with four legs. (Light spotting and damp-staining on first leaf, leaves loose). Original yellow printed paper wrappers (lightly soiled). A monograph on the autopsy of a three-legged chicken, extracted from Le Memoires de la Société royale des sciences de Liége. OCLC records only the Mus. Nat d’Hist Paris copy. Not in COPAC. Provenance: presentation copy to Omalius D’Halloy. And M. Paolus Martinus SAGITTARIUS’s D.S. Adeste Musarum Patroni Et Fautores; nam Oratio Valedictoria De Solertia Brutorum (Altenberg: Gottfried Richter, 1670).  (4)