Gaspar Ens "Thaumaturgus mathematicus, id est, admirabilium effectorum e mathematicarum disciplinarum fontibus profluentium sylloge". 1636. Gaspar Ens1570 ? - c. 1650 ? Constantine Mu¨nich Octavo format. With title woodcut, several woodcuts in the text "Epistola dedicatoria", "Praefactio", "Taumaturgus ad Lectorem", "Aprobatio" as well as 291 pages with text and index and two leaves at the end. Published in Cologne by Konstantin Mu¨nich, 1636, first edition in Latin. The woodcuts show various diagrammme and feats. With the bookplate of "Franc Com A Thun-Hohenstein Tetschen". Inscribed in ink on title page. On the first pages with anobia tear, without loss of text.Overall a little browned. Leaves slightly wavy. From page 171 with clearer brown stains at lower right. Binding stained and corners rubbed and slightly detached. Dimensions: book 14,5 x 9 x 3 cm. Gaspar Ens 1570 ? - around 1650 ? Gaspar Ens or Caspar Casparius was a German mathematician.He lived in Lorich, in the Netherlands as well as in Italy, Spain and France.