[Hermann Georg Jakob].  German Sanskrit scholar, born at Cologne, on the 11th of February 1850; studied at Bonn and Berlin, where he made a specialty of Sanskrit; spent a year working on the Sanskrit manuscripts of the India office in London, and in 1873 went to India with Dr. Bühler, whom he accompanied on his tour through the Rajputana. One of his chief works was the computation of tables for the verification of Hindu dates. He made a careful study of Jainism and Prâkrit, the language in which the sacred books of the Jainas are written. In 1885 he became Professor of Sanskrit at the University of Kiel, and in 1889 accepted the Sanskrit professorship at Bonn.