The period of the Reformation is one in which the editing and publication of new documents may be expected to necessitate a periodic revision of the general works. In a sense this is true of every period, but the unpublished sources for the age of the New Testament are slight and not often does the investigator turn up a Didache or the Odes of Solomon. In the Reformation period, however, discoveries are frequent and critical editions incomplete for even the great figures like Luther and Calvin. Zwingli is still in process in the Corpus Reformatorum. Traugott Schiess did not live to finish Bullinger. Some ten years ago M. Aubert showed me at Geneva the materials for the correspondence of Beza, but so far as I have observed nothing has appeared. Thomas Müntzer was in luck with the publication of his letters by Boehmer and Kirn in 1931 and his works by Otto H. Brandt in 1933. The Anabaptists have been favored only with a beginning. The Verein für Reformationsgeschichte has brought out one large volume on Württemberg and a smaller one on Brandenburg, but eleven more are still in the loins of Abraham. The Kommission zur Erforschung der Geschichte der Reformation und Gegenreformation published the letters of Peutinger and Cuspianus and selected works of Erasmus (edited by Annemarie and Hajo Holborn now of Yale), but further work on the humanists has been dropped. If only we might revive it in this country! Among us the Corpus Schwenckfeldianorum has been wallowing in the trough of foreign exchange. The fourteenth volume happily is out. Bender, Yoder and Correll have the material for a volume of Grebeliana if only the way opens to make friends with the mammon of unrighteousness.