GIESELER, JOHANN KARL LUDWIG German writer on church history, was born on the 3rd of March 1792 at Petershagen, near Minden. He was professor at Bonn (1819) , and Gottingen (1831) . He died on the 8th of July 1854. His Lehrbuch der Kirchengeschichte (6 vols., 1824-57) with its copious references to original authorities, is of great value to the student; there are two partial English translations: Text Book of Ecclesiastical History, New York, 5 vols. and Compendium of Ecclesiastical History, Edinburgh, 5 vols., in "Clark's Theo logical Library."