Johann Grasshoff (or Grasshof, Grasse)[1][2][3] (c.1560 – 1623) was a Pomeranian jurist, and alchemical writer. He is recorded also as a medical advisor to Ernest of Bavaria, a Syndic, and an Episcopal counselor.
His writings include the Aperta Arca arcani artificiosissimi (1617).[4] and a Cabala Chymica (1658).[5]
The compilation of the 1625 Dyas chymica tripartita is also attributed to him;[6] it includes The Golden Age Restored[7] of Henricus Madathanus, The Book of Lambspring,[8] of Nicolas Barnaud, and the Book of Alze.[9]
References
^Known also as Johannes Grassaeus or Crassaeus, Chortolassaeus, Crotolassaeus, and other forms.
^It is also said that he is the pseudonymous Herman Condeesyanus; but this is disputed: see the external link.
^Translated extract: [1] The Arca Arcani contains Der kleine Bauer attributed to Johannes Walch (Walchius, Valehius), which leads to the suggestion that Walch was Grasshoff; see this PDF of annotations to The Sceptical Chymist.
^The Dyas consisted of six tracts: Dyas Chymica Tripartita, Das ist: Sechs Herrliche Teutsche Philosophische Tractätlein: Deren I. Vonan itzo noch am Leben: II. Von mittlern Alters: und III. Von ältern Philosophis beschrieben worden. It is initialled H.C.D. or Hermann[us] Condeesyanus, so the attribution depends on identification. The other candidate, proposed in recent times by Carlos Gilly, is Johannes Rhenanus.