ISBN-13: 9780367292874 / Angielski / Twarda / 2019 / 334 str.
ISBN-13: 9780367292874 / Angielski / Twarda / 2019 / 334 str.
This book is about Charles Clark Willoughby's studies on the collection of artifacts and field records from the 1891-1892 excavations at the Hopewell Site that were included in the Field Museum. The engineering achievements seen in the geometric earthworks reflect social energy and commitment.