Bleek. I. Friedrifh, a German theologian, born at Ahrensbok, Holstein, July 4, 1793, died in Bonn, Feb. 27, 1859. He studied under De Wette, Schleiermacher, and Neander, and after being connected with the university of Berlin, was for 30 years (1829-'59) professor of theology in Bonn. His principal work, Der Brief an die Hebraer, is a translation of and commentary on the epistle to the Hebrews (3 vols., Berlin, 1828-'40). In his Beitrags zur Eoangelieneritik (1846) he vindicated the authenticity of the Gospel of St. John against the attack of the new Tubingen school. After his death appeared other works, the most important of which are Einleitung in das Alte Testament (edited by his son, the Rev. Johann Friedrich Bleek, and by Camphausen, Berlin, 1860), and Einleitung in das Neue Testament (edited solely by the former, 1862). II. Wil-helm Heinrieh Immanael, a German philologist, son of the preceding, born in Berlin, March 8, 1827. He studied at Berlin and Bonn, and accompanied Baikie's expedition to the Niger in 1854; but ill health compelling his return after his arrival at Fernando Po, he accompanied Bishop Colenso to Natal in 1855, and the next year removed to Cape Town, where Sir George Grey subsequently appointed him director of the library which he had presented to the colony He published a "Vocabulary of the Mozambique Languages" (London, 1856); a "Catalogue of Sir George Grey's Library" (1858-'9); "Comparative Grammar of South African Languages" (2 vols., Cape Town and London, 1862-'9), etc.; and he was the principal author of a "Handbook of African, Australian, and Polynesian Philology" (3 vols., London and Cape Town, 1858-'63).