28 page account for ‘Extra Works in additions to a Contract & Omissions therefrom for Erecting and finishing the new Rooms for the Philosophical Society Cambridge’ [in All Saints Passage] by William and Josh [Joseph?] Charles Bell, under headings for: Bricklayer & Digger; Mason; Plasterer; Carpenter & Joiner; Plumber; Glazier; Smith; Painter. Together with certificate of execution of the works by Charles Humfrey, architect, on last page.