Johann Karl Ludwig Gieseler, a German church historian, born at Petershagen, March 3, 1792, died in Gottingen, July 8, 1854. He interrupted his studies in the university of Halle to serve as a volunteer in the campaign of 1813. In 1815 he resumed his studies, which he combined with teaching. In 1818 appeared his Historisch-Kritischer Versuch uber die Entstehung und die fruhern Schicksale der schriftlichen Evangelien, and in 1819 he was appointed professor of theology in the university of Bonn, and in 1831 at Gottingen. His principal work is Lehrbuch der Kirchen-geschichte. The five volumes published during his lifetime brought the history down only to the peace of Westphalia in 1648; but from"the notes and manuscripts which he left, it was continued to the present century by his pupil Redepenning. An English translation of the entire work has been published under the editorial care of Prof. Henry B. Smith (4 vols., New York, 1856-8). It is especially valuable for the fulness of its citations, the source for each important statement being given at length in notes, which in volume far exceed the text.