It is very probable that the long tracklines that extend over hill and vale on Dartmoor indicate tribal boundaries, limits beyond which the cattle of one clan might not feed. Some of these lines, certainly of the age of the Neolithic men of the hut circles, may be traced for miles. There is one that starts apparently from the Plym at Trowlesworthy Warren, where are clusters of huts and inclosures. It follows the contour of the hills to Pen Beacon, where it curves around a collection of huts and strikes for the source of the Yealm by two pounds containing huts. That it went further is probable, but recent inclosures have led to its destruction. We cannot be sure of the age of these tracklines unless associated with habitations, as some very similar have been erected in recent times as reeves delimiting mining rights.
That the occupants of the moor at this remote period loved to play at games is shown by the numbers of little round pebbles, carefully selected, some for their bright colours, that have been found on the floors of their huts. That they used divination by the crystal is shown by clear quartz prisms having been discovered tolerably frequently. These are still employed among the Australian natives for seeing spirits and reading the future.
That these early people were monogamists is probable from the small size of their huts; they really could not have accommodated more than one wife and her little family.
That they were a gentle, peaceable people is also apparent from the rarity of weapons of war. Plenty of