and, admitting [the -crossed out] my guess
for the sake of argument,
if "fills the bill", it
explains phratries
without involving a
primeval conscious
bisection for exogamous
purposes. I don't see why,
at that remote period,
people not exogamous
would have wished to
be so, and made the
bisection to that end. On
my scheme they drifted
into totemic and phratrist
exogamy blindly.