Such  premises  and  corroborative  evidence  as  are
drawn  from  remoter  sources,  as  well  as  whatever  articles
of  theory  or  inference  are  borrowed  from  ethnological
science,  are  also  of  the  more  familiar  and  accessible
kind  and  should  be  readily  traceable  to  their  source  by
fairly  well-read  persons.  The  usage  of  citing  sources
and  authorities  has  therefore  not  been  observed.  Like-
wise the  few  quotations  that  have  been  introduced,
chiefly  by  way  of  illustration,  are  also  such  as  will
commonly  be  recognised  with  sufficient  facility  without
the  guidance  of  citation.
