||Volume 2, of two volume work, deals with Aub's response to R. Samson Raphael Hirsch's Nineteen Letters . The text is in German with occasional words and phrases in Hebrew.
The author, R. Dr. Joseph Aub (1805–1880) was a German moderate Reform rabbi. Dr. Aub was rabbi in Bayreuth from 1830 to 1850, in Mainz, and in Berlin from 1865. He was among the first rabbis in Bavaria to preach in German. Dr. Aub published a polemical tract on the Bavarian edict regarding rabbinical qualifications (Betrachtungen und Widerlegungen, 2 vols., 1839), a weekly periodical Sinai (1846), a prayer book (1866), a religious educational textbook Biblisches Spruchbuch (1868), and collaborated in the writing of periodicals published by A. Geiger. He participated in the rabbinical synods of 1869 and 1871.
Title: 1. Heft. Betrachtungen über die des Mosaismus und die Neologie der Rabbinen betreffende Bayer. Ministerial-Entschliessung. 2. Heft. Widerlegungen; ein Dialog über Herrn Hirsch's Mittheilungen aus Naphtali's Briefwechsel.