This series consists of a bibliography of Cotton Mather's works, compiled by William S. Piper from Cotton Mather: A Bibliography of His Works, by Thomas James Holmes (Newton, Mass.: Crofton Publishing Co., 1974). This published volume is located in the MHS reference area (call number: REF .Z8554 .H63).

This series contains the diaries of Cotton Mather, with some gaps. Most of the diaries start on December 12 of the previous year, so the years listed indicate the bulk of the diary. Entries are mainly an account of Mather's personal spiritual life and his ministerial duties, including the preparation of his manuscript "Biblia Americana," attendance at church meetings, counseling of parishioners, and sermons preached at various churches including Old South Church and Old North Church in Boston. Some entries describe current events such as the 1693 witchcraft outbreak in Salem, the 1721 smallpox outbreak in Boston, and the smallpox inoculation controversy. Occasional entries also contain family news such as marriages, births, deaths, and the health of family members.

This series contains notes of the sermons of Increase Mather and others taken by Cotton Mather between 1676 and 1720.

The following documents have been arranged in page number order. To assist researchers in finding breaks between documents, the page numbers of each have been noted in parentheses. The page numbers appear in pencil on each page of the document, usually in the upper right-hand or left-hand corner. Documents in this series were written by Cotton Mather unless noted otherwise.

This series contains the historical and religious works of Cotton Mather, written between 1680 and 1724, including sermons on Biblical figures and studies of apocalypticism, millennialism, conversion, angels, prophecy, and witchcraft. The series also contains collections of quotations and proverbs, a profile of Massachusetts Governor Thomas Dudley (1576-1653), and Mather's encyclopedic commentary on the Bible, "Biblia Americana."