than ten thousand letters might be found bearing on the Ger- man Reformation during this period. But while our selec- tion is necessarily small, we trust it is sufficient and repre- sentative.
We are glad to offer some hitherto tmpublished material in this volume, and expect to be able to offer more in future.
It is a pleasure to acknowledge our obligations to the Rev. Professor Henry Eyster Jacobs for a valuable contribution. Mr. Smith desires also to express his warm thanks to his friends. Professor Herbert P. Gallinger, for the transcription of the epistles taken from the Calendars of State Papers, and for other help, and to the Rev. Professor W. W. Rockwell and Walter Longstreth, Esq., for important assistance. Mr. Jacobs wishes to extend thanks to the Libraries of Harvard and Princeton Universities, the University of Pennsylvania, and Union Theological Seminary, for the loan of a number of volumes, and to his father, Henry Eyster Jacobs, for in- numerable helps. Our thanks are also due to the Pennsylvania Historical Society for permission to publish one of the manu- scripts contained in Appendix I.
P. S. C. M. J.
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