 Warsaw, 1885), on R. Isaac Arama's philosophical work "Aḳedat Yiẓḥaḳ," and a biography of the same scholar.Pollak was also the author of a number of Hebrew songs in the annual "Bikkure ha-'Ittim," and of a scholarly essay on the Talmudic rules of the יש אם למקרא in Stern's "Kebuẓat Ḥakamim," besides being a regular contributor to many Hebrew periodicals.He died at Trebitsch, Moravia.