symbol of dual or quadruple nature, [31];
of eternal life and the Creator, [32];
cursive sign for, [38];
on shell gorgets from Mississippi valley, [49], [112];
origin of symbol, [50];
divine ruler of four quarters, [68], [69];
feathers with (see Feathered serpent) [70], [71];
pertaining to earth-mother, [100];
double-headed, forming vase, [101];