Quarto vellum spined boards (probably newer using old material) Titlepage + Epigramma +33 unnumbered pages. Starting with a question, there are LXXXIIII propositions and Appendix. Some creases to titlepage and margin of one other leaf else exceptionally clean and crisp. *Sebastian Bloss was Professor of Medicine at Heidelberg in 1584, later at Ulm and finally in Tuebingen where he died.His most famous work was on the plague. Scarce - only 3 copies in German libraries none in the UK,but not in GM, Durling, Waller, Wheeler or Wellcome.