literary career of more than fifty years, Luzzatto wrote a great number of works and scholarly correspondences in Hebrew, Italian, German and French. Besides he contributed to most of the Hebrew and Jewish periodicals of his time. His correspondence with his contemporaries is both voluminous and instructive; there being hardly any subject in connection with Judaism on which he did not write. Isaiah Luzzatto published (Padua, 1881), under the respective Hebrew and Italian titles Reshimat Ma'amarei SHeDaL and Catalogo Ragionato degli Scritti Sparsi di S. D. Luzzatto, an index of all the articles which Luzzatto had written in various periodicals. The Penine Shedal ('The Pearls of Samuel David Luzzatto'), published by Luzzatto's sons, is a collection of 89 of the more interesting of Luzzatto's letters. These letters are really scientific treatises, which are divided in this book into different categories as follows: bibliographical (numbers 1–22), containing letters on Ibn Ezra's Yesod Mora and Yesod Mispar; liturgical-bibliographical and various other subjects (23–31); Biblical-exegetical (32–52), containing among others a commentary on Ecclesiastes and a letter on Samaritan writing; other exegetical letters (53–62); grammatical (63–70); historical (71–77), in which the antiquity of the Book of Job is discussed; philosophical (78–82), including letters on dreams and on the Aristotelian philosophy; theological (83–89), in the last letter of which Luzzatto proves that Ibn Gabirol's ideas were very different from those of Spinoza, and declares that every honest man should rise against the Spinozists. In Hebrew 2. Padua. 1879. Collection of poems. Elegy on the death of Abraham Eliezer ha-Levi. Guide to the understanding of Targum Onkelus, with notes and variants; accompanied by a short Syriac grammar and notes on and variants in the Targum of Psalms. 2. Vienna. 1859. By Isaiah Berlin, edited by Luzzatto, with notes of his own. Revised and edited with variants. Extracts from the diwan of Judah ha-Levi, edited with notes and an introduction. Seventy-six epitaphs from the cemetery of Toledo, followed by a commentary on Micah by Jacob Pardo, edited with notes. . 2. Przemysl. 1888. 3. Krakow. 1889. Collection of essays on the Hebrew language, exegetical and archeological notes, collectanea, and ancient poetry. Scholia to the Pentateuch. Dialogues on Kabbalah and on the antiquity of punctuation. The Book of Isaiah edited with an Italian translation and a Hebrew commentary. A historical and critical introduction to the Maḥzor. Eighty-six religious poems of Judah ha-Levi corrected, vocalized, and edited, with a