ISBN-13: 9781517367404 / Angielski / Miękka / 2015 / 394 str.
"Of all the many thousands of earthworks of various kinds to be found in England, those about which anything is known are very few, those of which there remains nothing more to be known scarcely exist. Each individual example is in itself a new problem in history, chronology, ethnology, and anthropology; within every one lie the hidden possibilities of a revolution in knowledge.