Stonehenge and the First Calculators
Timber Posts and Rings. Post Holes A
Bluestones in the Q- and R-Holes
Stone 97 and the Heel Stone (96) and its Ditch
Stones B and C, and the Hollow
Stone Holes D, E and the Ditch Stone
The Slaughter Stone (95) and Holes D and E again
The History of the Dressed Bluestones
11 THE FIRST THREE STONEHENGES
The Levels of the Sarsen Trilithons and Circle
The Geometry of the Sarsen Pillars
The Blocking of Rays through the Q- and R-Circles
Geometers, Engineers and Astronomers
The Sarsen Ring and Midsummer?
The Moon and the Stone Stations
The Trilithons—an Independent Monument?
The Bush Barrow Lozenge Was Not a Calendar
The Lozenge as Geometrical Construct
APPENDIX 2—The Astronomical Framework
APPENDIX 3—Tables of Directions
APPENDIX 4—Heliacal Rising and Setting
APPENDIX 5—The Rising and Setting of Venus