The 121 volumes in the British Library are an invaluable archive, mainly of business ledgers, which cover the period 1739 to 1861. They provide information on the day-to-day running of the printing house, the important state publications and perhaps most importantly, on the publication of Johnson's Dictionary, Cook's Voyages and Gibbons' Decline and Fall. A guide accompanies each order for the complete collection, containing contents of reels and a detailed listing.

Part One: Printing ledgers, cost books, accounts and memoranda, 1739-1815 (Additional MSS. 48800-48861) -- 12 reels

Part Two: Accounts, inventories, correspondence, lists of employees, notes on a strike of 1836 and other papers, 1815-1855 (Additional MSS. 48862-48918) -- 11 reels

Complete Collection: 23 reels