490 Johann Heinrich COHAUSEN [1665-1750]. Helmontius ecstaticus, sive visa medicaminum potestas ab Helmontio somniante, Revisa ą vigilante Joanne Henrico Cohausen. M.D. Id est Tractatus Theoretico-practicus, Arcanioris Sophiatriae promus condus, continens duas Diatribas, Quarum prima Visionem Ecstaticam Helmontii, hactenus ą nemine detectam, clarissimč aperit; Altera in pręcipuas ejus sensationes physico-chymicas sublimes novasque Reflexiones, omnibus ad Arcana Adeptorum aspirantibus utiles atque necessarias, proponit, interspersis raris atque magnis Remediis. Accedit pro supplemento Sensationis ultimę Helmontianę. De hermetis aquina forma pontica, quę elementa dissolvit. Nec non Helmontii liquore igni-aqueo Alcahestino, solvente Catholico. Disertatio pyrotechnica curiosa. Notis ab autore illustrata. 8° Amstelodami: apud Salononem Schouten 1731 Ferguson Nat Union Cat British Library [Illustration:- Frontispiece engraving. 128x80mm. Above a canopied dias is a circle of clouds. Light rays out from a triangle bearing the word "Est". To the left we look out into a garden with a fountain, to the right we see into a laboratory which is being destroyed by men. A woman with a cornucopia sits on the steps of the dias. A man kneels gazing on this scene, and three woman approach him, one bearing a book "Gemma rosae nundum apertie", another with a flask containing "ignis aqua", while the third shows him two keys. The text at the bottom states "Luce Throni Ecstaticus Naturam perspicit Helmont Gemma Rosae offertur, traditur ignis-aqua". "A. van der Laan inv. et fec."]