Thaumaturgus mathematicus, id est, Admirabilium effectorum e mathematicarum disciplinarum fontibus profluentium sylloge

Ens, Gaspar, approximately 1570- · 1636 · Coloniae : Apud Constantinium Münich · 7 pictures

Science -- Early works to 1800 · Scientific recreations

Internet Archive · Fisher - University of Toronto · Public domain (published before 1931) · More from this library