xii, 332 pp., 29 b/w plates (2 folding), 7 folding maps, Orig. cloth., lightly rubbed. endpapers foxed. Good ex-lib. copy with single stamp to endpaper - Research Department (Economics) Dartington Hall, Totnes. Bookplate of Leonard Knight Elmhirst (1893-1974), philanthropist and agronomist who was co-founder, with his wife Dorothy, of the Dartington Hall project in progressive education and rural reconstruction. Detailed work on the open-field system which was the main agricultural system in much of Europe during the Middle Ages. [29341]