Further work to refine the geometry and form of the stone setting that once surrounded Avebury’s Cove, has proved to be based on Professor Thom’s egg-shaped circle type 2, seen in 'Megalithic sites in Britain,' by A Thom1967, page 29. The sides of the pair of triangles, from which the geometry was generated, measures 24, 32, and 40 megalithic yards—an eight times 3, 4, 5 triangle.

 

Centred on the inner side of the easternmost stone of the Cove that I have always claimed to be male, this egg was based on the simplest of all Pythagorean triangles. Professor Thom found no less than 10 of them, so no wonder this type of egg was emulated throughout the land! This one makes eleven. I now find its alignment slightly more anticlockwise than previously stated, and perhaps by as much as 1.5 degrees. Well, no one said resolving it was going to be easy!