o 1545 he studied in
Frankfort-on-the-Oder; in 1545 he went to Wittenberg, where Melanchthon
directed his studies. In 1548 he became rector of the school in
Koenigsberg, and 1550 librarian of Duke Albrecht, with a good salary.
Owing to his participation in the Osiandrian controversy, Chemnitz lost
the favor of Albrecht, and in 1553 he removed to Wittenberg. On June 9,
1554, he began his lectures on Melanchthon's _Loci Communes_ before a
large and enthusiastic audience, Melanchthon himself being one of his
hearers. In November, 1554, he accepted a position as pastor, and in
1567 as superintendent, in the city of Brunswick. He died April 8, 1586.
Chemnitz was the prince of the Lutheran divines of his age and, next to
Luther, the greatest theologian of our Church. Referring to Luther and
Chemnitz, the Romanists said: "You Lutherans have two Martins; if the
second had not appeared, the first would have disappeared (_si posterior
non fuisset, prior non stetisset_)." Besides the two Lutheran classics:
_Examen Concilii Tridentini_, published 1565--1573, and _De Duabus
Naturis in Christo_, 1570, Chemnitz wrote, among other books: _Harmonia
Evangelica_, continued and published 1593 by Leyser and completed by
John Gerhard, and _Foundations_ (_Die Fundamente_) _of the Sound
Doctrine concerning the Substantial Presence, Tendering, and Eating and
Drinking of the Body and Blood of the Lord in the Supper_, 1569.

Andreae and Chemnitz became acquainted with each other in 1568, when
Duke Julius invited the former to conduct the visitation in Brunswick
together with Chemnitz. They jointly also composed the Brunswick Church
Order of 1569, which was preceded by the _Corpus Doctrinae Iulium_,
compiled by Chemnitz and containing the _Augsburg Confession_, the
_Apology_, the _Smalcald Articles_, the Catechisms of Luther, and a
"short [rather long], simple, and necessary treatise on the prevalent
corruptions." Andreae and Chemnitz are the theologians to whom more than
any other two men our Church owes the _Formula of Concord_ and the
unification of our Church in the one true Christian faith as taught by
Luther. However, it is Chemnitz who, more than Andreae or any other
theologian, must be credited with the theological clarity and the
correctness which characterizes the _Formula_.

276. First Peace Efforts of Andreae Fail.

In his first attempts to unify the Lutheran Church, Andreae endeavored
to reconcile all parties, including the Wittenbe