Malleus haereticorum. De variis falsorum dogmatum notis, atque censuris, libri duo. In quibus universa penè haereses et cognoscendi, et fugiendi ratio continetur. Sive methodus contra sectas, ad argvendos et convicendos haereticos congesta: editio secunda, cui nunc accessit demonstratio, penes quos hodie vera, aut falsa sit ecclesia.

Ingolstadt, apud Davidem Sartorium, 1581. pp. [80] 542 p. Book in Latin. In-8. Beautifull ornamented white blind stamped calf. Additionally black engreved to front cover. Two original clasps. Fist and last blank leaf missing. Title page in black. 80 unnumbered and 542 numbered pages. Blue paper edges. Clean endpapers with small pencil annotation on the first back cover. Nice ornameting, wide margins and initial letters. Very clean and bright interior. Franziskaner Kloster Dettelbach stamp and hand-written anotations on the title page. Complete. Very good condition. 2nd rare edition (First, 1580) of interesting and influential work on heresy. Very uncommon issue on the market. Rare in any edition. "Hammer of Heretics" is a Catholic counter-reformation text by Georg Eder, published in Ingolstadt, that defends Catholicism against Protestant doctrines, particularly Lutheranism and Anabaptism. It is distinct from the 1487 Malleus Maleficarum (witch-hunting manual), focusing instead on combating heresy through theological argumentation. Eder was a lawyer and Catholic theologian (1523 - 1587), Imperial Court Councillor and advisor to Emperors Ferdinand I, Maximilian II, and Rudolf II. Best known for his theological polemical writings. "His oratorical and literary talent, the decidedly Catholic orientation from his Bavarian homeland, which deepened in Cologne and, in Vienna, where he immediately sought contact with the Jesuits, manifested itself in tireless activity, making Eder a champion of Catholicism struggling for its existence in Austria" (NDB IV, 311 f.). "Eder's writings from this period all deal with the question of church confession with regard to the differing and opposing positions of the Protestants" (ADB V, 318). Bibliography: USTC No. 674751, VD16 E 541, Stalla 1413, Adams E 64. Provenance: Franziskaner Kloster Dettelbach.