On Ancient Pillar Stones and Cairns: Their Antiquity, the Extent of Country Over Which Their Use Extended, and Their Signification is a book written by Thomas Inman in 1867. The book explores the history and significance of ancient pillar stones and cairns, which were used by various cultures throughout history for a variety of purposes. Inman examines the antiquity of these structures and the extent to which they were used across different regions...