 He died in Jenkintown, Pennsylvania, in 1921.He contributed articles to, and was one of the editors of the scholarly "Jewish Encyclopedia" published 1901-1906 by the Jewish Publication Society; he was, as well, a contributor to the "Encyclopaedia Biblica" (1903), the "Encyclopædia Britannica" (11th edition), the "New International Encyclopaedia" and "Webster's Dictionary".He edited a fragment of the Babylonian Dibbarra Epic (1891); the Aramaic text of the grammatical treatises of Abu Zakariyya Hayyug (1897); "Selected Essays of James Darmesteter" (with a memoir; translation of the essays from the original French by Helen Bachman Jastrow (Mrs. Morris Jastrow, Jr.), 1895); and a series of "Handbooks on the History of Religion".