She’erith Yoseph [on the methodology of the Talmud].

The author, who lived in Turkey, was the son of Solomon ibn Verga, author of the historical chronicle, Shevet Yehudah. On the title-page, the author boasts he assembled many Talmudic principles not included in the earlier works on Talmudic methodology, that is, Sepher Kerithoth by Samson of Chinon and Halichoth Olam by Isaiah Halevi.