(“Ben Usiel.”) Igroth Tzafon. Neunzehn Briefe über Judenthum [“Ninteen Letters about Judaism’]. pp. viii, 111, (3). <<* Bound with: >> Naphtulei Naphtali. Erste Mitteilungen. pp. vii, 80 (2).

Written in the form of an exchange of letters between two intelligent young men, Benjamin, an idealist impressed by society’s rapid progress in the arts and sciences, and Naphtali, a young Rabbi,”The Ninteen Letters” quickly became the definitive work in Germany setting out the essence of Judaism for a rational and increasingly skeptical era. The second work is a refutation of the theories of the Reform Movement which quickly caused a considerable stir within liberal circles. See E. Klugman, Rabbi Samson Raphael Hirsch (1996) pp. 59-67 and 72-73.