Lovanii [Leuven], typis Hieronymi Nempaei [Hieronymus Nempaeus] 1674 117 + [1] pp., with printer's device on title page (medaillon with S. Thomas), 1st edition, 15cm., text in Latin, contemporary full-leather binding (joints split, few small losses of leather, gilt decorations on spine with a small worm hole), old handwritten ex-libris and ex-libris stamp on first blanco endpaper, The author Huygens (Lier 1631-1702) was a professor of Theology at the 'Academia Lovaniensi', [BOUND WITH: HUYGENS Gommarus, Tractatus III. Qui accessit Methodo Remittendi & Retinendi Peccata, Lovanii [Leuven], apud Hieronymi Nempaei, 1674, [30] + 71 + [5] pp.], R113649