What  is  it  indeed  but  a  correction  of  inequalities  ?
an  adjustment,  by  mutual  compensation,  of  ano-
malous forms  into  a  regular  congeries  1  the  effect,
in  a  word,  of  artful,  and,  if  we  might  be  permitted
so  to  speak,  of  studied  collocation  1

3.  Similar  also  to  this,  is  the  third  observation ;
that  an  internal  inequality  in  the  feeding  vessels
is  so  managed,  as  to  produce  no  inequality  in  parts
which  were  intended  to  correspond.  The  right
arm  answers  accurately  to  the  left,  both  in  size
and  shape ;  but  the  arterial  branches,  which  sup-
ply the  two  arms,  do  not  go  off  from  their  trunk,
in  a  pair,  in  the  same  manner,  at  the  same  place,
or  at  the  same  angle.  Under  which  want  of  si-
militude, it  is  very  difficult  to  conceive  how  the
same  quantity  of  blood  should  be  pushed  through
each  artery :  yet  the  result  is  right ;  the  two  limbs,
which  are  nourished  by  them,  perceive  no  differ-
ence of  supply,  no  effects  of  excess  or  deficiency.
