In 1863 Geiger became head of the synagogue of his native town, and in 1870 he removed to Berlin, where, in addition to his duties as chief rabbi, he took the principal charge of the newly established seminary for Jewish science.
Geiger also contributed frequently on Hebrew, Samaritan and Syriac subjects to the Zeitschrift der deutschen morgenldndischen Gesellschaft, and from 1862 until his death (on the 23rd of October 1874) he was editor of a periodical entitled Ji dische Zeitschrift fiir Wissenschaft and Leben.
Ludwig Geiger published a large number of biographical and literary works and made a special study of German humanism.
Abraham Geiger's nephew Lazarus Geiger (1829-1870), philosopher and philologist, born at Frankfort-on-Main, was destined to commerce, but soon gave himself up to scholarship and studied at Marburg, Bonn and Heidelberg.
Geiger (Urschrift and Uebersetzung, p. 305) very unnecessarily supposed that this was everywhere the original reading, and that it had been changed to soften the enormity ascribed to the ancient Hebrews.
