Message #147978

[Bianca]

The question of cause or effect opened still further with Underwood's discovery of his second type of influence line, the 'track-line'.[15]

Track-lines, said Underwood, are slightly weaker than water-lines, and are formed of three close, near-parallel groups of three still-closer 'hair-lines'. These nine-fold lines often run in pairs, from ten to sixty or more feet apart; and when they do they coincide closely with the hedges or ditches of old roads.

The width of single track-lines – from four to ten feet – tallies closely with the width of the tracks with which they coincide.

Underwood claimed that the winding courses of many old roads and tracks was 'controlled entirely' by track-lines and track-line pairs, and suggested, as his results seemed to show, that any alterations from the original prehistoric courses of the road would be shown up by deviations from the unchangeable courses of the track-lines.