Taken chiefly from the Archives of Zurich, these letters have been translated from authenticated copies of the autographs for the Parker Society. The Parker Society was "instituted for the publication of the works of the fathers and early writers of the Reformed English Church."

The editor notes that he "refrains from any remarks upon the various topics treated in these letters; it being his desire, and the object of the Society, that the respective writers should speak for themselves."

Notes are added, however, "for the purpose of throwing additional light upon the facts and circumstances recorded in the correspondence."

Calvin, Beza, Bullinger, Martyr, Farell, Zanchius, Coverdale, Queen Elizabeth and a host of others either penned or received these letters.

Contains an extensive index and table of contents.