“If Stones Could Speak….. What Tales They might Tell", especially dolmens, menhirs, cairns and henges!, July 2010

“If Stones Could Speak….. What Tales They might Tell", especially dolmens, menhirs, cairns and henges!, July 2010, Box: 13. George Charles Poppensiek papers, 24-2-2149. Division of Rare and Manuscript Collections. https://archives.library.cornell.edu/repositories/2/archival_objects/158431 Accessed December 20, 2025.