Ad aegocerotem Emserianvm M. Lvtheri additio.

First edition of Luther's response to Hieronymus Emser's report of the Leipzig Disputation between Martin Luther, Andreas Bodenstein Karlstadt and Johann Eck. Emser, who had been initially sympathetic to Luther's position had accompanied Eck to Leipzig, where he broke with the reformer. In his report, he tried to associate Luther with the Bohemian reformer Jan Hus, who had been burnt at the stake during the Council of Constance in 1415. In this as well as in subsequent tracts, Luther refers to Emser as "the goat" (aegoceros) in reference to the latter's coat of arms.
Imprint from colophon.