|Title||Supplement to the Book of Letters|
|Author||John Reeve and Lodowicke Muggleton|
|Year of Publication||1831|
|Links||This work may be found here|
The Frost's preface is self explanatory:
"WITH the authority of the Church we have made diligent search through the Manuscript Records of the Church, and have found the following Letters, not in print in the" Book of Letters." The following Letters may be considered the conclusion of all the Writings of the Prophets REEVE and MUGGLETON both of spiritual matter and temporal advice, as far as the Church is in possession of"