Late 17th Century Observations on Irish Agriculture by Sir William Petty, Founder Lansdowne Estate, Beara, Kerry
Courtesy Antoin Murphy’s excellent 1986 biography of Richard Cantillon, Irish Economist, Banker in France:



https://wordpress.com/block-editor/post/durrushistory.com/5636
https://wordpress.com/block-editor/post/durrushistory.com/30228
Sir William Petty:
https://wordpress.com/block-editor/post/durrushistory.com/3543