The third volume forming part of the _Synagogale Poesie_ was, as already stated, published by Zunz in 1865 under the title of _Die Literaturgeschichte der synagogalen Poesie_. Though a small supplement was added to it about two years later under the heading of _Nachträge zur Literaturgeschichte der synagogalen Poesie_, it virtually closed the series of Zunz's three epoch-making works that deal almost exhaustively with the most important branches of Jewish science and literature. In this particular field of study and research, Zunz proved himself to be a first-rate critic and investigator, and there he also attained conspicuous success. But, while admiring in Zunz his many-sided talents, and more especially his extensive knowledge of earlier and later Hebrew literature, credit must also be given him for the honesty with which he records the obligations he owed to his literary friends for their aid in the preparations of his literary compositions. Among them may be specially mentioned Delitzsch, Rapoport, Luzzatto, Sachs, and Dukes, with all of whom Zunz for many years carried on a lively correspondence. This helped him greatly in his researches. Thus, for instance, in 1832, Zunz was only aware of the existence of 200 _Selichoth_, but from the information supplied by his friends he was enabled to add to the list of these liturgical poems until they had reached the large number of 1,816. It is natural that Zunz had many admirers among men of education, who were able to read and appreciate his German works. Yet it is interesting to note that a great many Jews, who were only slightly acquainted with German, but had an extensive knowledge of Hebrew and the Talmud, held him in great esteem as a Hebrew scholar. This distinction Zunz owed to his mastery over the Hebrew style, examples of which are to be found in the preface to his edition of Krochmal's _Morè Nebuche Ha-Z'man_ (‪מורה נבוכי‬ ‪הזמן‬), and likewise in the Hebrew periodical _Kerem Chemed_. The latter contains a biographical sketch of the famous Jewish critic, Azariah de Rossi (1514–98), which is not only remarkable for its learning, but also for the excellence of its composition. Zunz also wrote some pretty Hebrew verses, specimens of which he gave in his metric Hebrew translation of Klopstock's _Die Sommernacht_, which appeared (in 1819) in Heinemann's Annual, called _Yedidja_.