"The Report of Thomas Yeoman, Engineer, Concerning the Drainage of the North Level of the Fens, and the Outfal [sic] of the Wisbeach River."
Attached at back: "A chain and scale of levels along Wisbeach River and channel from Peterborough Bridge down to the Eye at Sea. Taken in 1767 by William Elstobb". On front cover in ink "Mr Yeoman".
15 November 1769