AHRENS, FRANZ HEINRICH LUDOLF German philologist, was born at Helmstedt, June 6, 1809, and died Sept. 25, 1881. His most important work is De Graecae Linguae Dialectis new ed. by Meister, which, al though unfortunately incomplete, dealing only with Aeolic and Doric, and in some respects superseded by modern research, remains a standard treatise. A volume of his minor works (ed. Haeberlin, 1891) contains a complete list of his writings.