Blagged from Rock Art in the British Landscape
http://groups.msn.com/rockartinthebritishlandscape/home.msnw
In his book "The Prehistoric Rock Art of Galloway & The Isle of man", Morris gives 104 explanations (some written as a statement!) and gives them his "personal assessment of the probability that each idea is correct" through marks out of ten. Since a lot of references are made to this book, all the explanations will be given in the same sequence as in the book. Morris' Rating: 10 = a certainty or nearly so, 5 = reasonably sensible idea which may or may not be true, 0 = quite impossible.
Burials (10), Standing stones (9), Alignment markers (10), Astronomy (9), Re-use in burial (9), Early prospectors (8), Early prospectors aids (8), Belief in after-live (8), Religious and magical (7), Uniform religious or magical significance (6), Breasts (4), Mother Goddess (4), Eyes (4), Phallic symbols (3), Fertility symbols; 'sperm entering the egg'(2), Fertility rites (3), Marks of sexual prowess (0), Circumcision ceremony (1), Sex symbols (0), Sun symbol (6), Sun God (5), Baal (5), Water divining (0), Mixing Vessels for bronze (2), Mixing vessels for pigments (4), Quantity measures (1), Freemasons 'earliest' marks (0), Sacred food & wine holders (5), Fertility rites (Indian) (0), Copies of worm casts (2), Copies of tree rings (2), Copies of ripples from a stone thrown into a pool (2), Druids (5), Use by Druids (5), Blood sacrifice (4), Code (5), Water time-signals (1), Clocks (1), Pictographs or hieroglyphs (6), Early writing (0), Messages from outer space (0), Megalithis inch (9), All measured in or founded on megalithic inches (0), Right angle triangles (9), Equilateral triangles (6), Code (1), Spirals are two-centre half-circles or ellipses(7), Different races made them (7), Bonfire ritual site markers (6), Search for food (2), Seed production (1), Early pilgrimage marks (1), Dye-transfer moulds (6), Metal moulds (0), Maps of the countryside (1), Building plans (0), Star Maps (1), Emblems (5), Tattooists' patterns(5), Decorations (5), Doodles (2), An elderly man's screen (2), Boundery Markers (5), Route markers (5), Tribal convention commemorators (3), Mithras worship (0), Shields (0), Gaming tables (3), Marbels (3), Anular brooches (3), Animistic carvings (0), Primitive lamp bases (5), Water worship (5), Cattle worshuip (2), Marks of piety (5), Re-use of a long dead superstition (5), Monuments of the dead (1), Natural (0), Hidden treasure (0), Plans for megalithis structures (0), Plans for laying out mazes (0), Field ploughing plans (0), Oath marks (5), Victory Marks (1), Masons'marks (0), Adder Lairs (0), Knife-sharpening marks (0), An early form of music notation (0), Tuning device (0), Early astronomers's night memoranda (2), Birth, growth, life and death symbol (5), A locked-up force (0), The stone circle builders carved them (8), Healing Magic (5), Casts for making bronze (3), Sea Goddess worship (1), Mirror (5), Wells (0), Child carvings (0)