Very first sentence is about the knapped artefacts First Nations people here made with ballast stones. Def of interest to archs!
The English Historical ReviewNew article! Matthew Evenden @arts.ubc.ca on 'Deptford Stones: London, the River Thames and the Circulation of Ballast in the Age of Sail, c.1750–c.1850' academic.oup.com/ehr/advance-...