This series consists of affidavits in equity and revenue causes in the Exchequer. Until 1841 it contains affidavits in both equity and revenue suits. After 1841, and the abolition of the equity jurisdiction of the Exchequer, it contains revenue matter alone.
The affidavits were headed with the name of the court and the title of the suit, that is, of the plaintiff(s) and defendant(s) in the action, and signed by both the person making the affidavit and the person before whom it was taken.
While the majority are procedural, some affidavits supplement or explain information given in the formal pleadings or prove exhibits by stating, for example, the circumstances under which a particular deed was made. Most affidavits after 1841 relate to actions brought by the solicitors for the Inland Revenue or the Post Office.
Affidavits can be a rich source for social, economic, and family history, but are not readily accessible.