These  instances,  observed  in  a  very  cursory  comparison,
seem  sufficient  to  prove  that  B  was  the  correction  of  A.  I
have  said  that  the  sheet  ^,  unlike  all  the  others,  retains  the
headhne  of  A ;  but  there  are  other  points  in  which  it  varies  as
the  other  sheets  do ;  and,  in  fact,  I  believe  there  is  no  one  page
in  A  which  entirely  agrees  with  the  corresponding  page  of  B.
Now  as  to  the  copy  C.  It  appears  to  me  that  up  to  and  in-
cluding the  sheet  gj  it  agrees  with  B.  Then  sheet  jff  is  from  A.
After  this  it  agrees  with  B  up  to  and  including  sheet  |g.
Then  in  the  five  remaining  sheets,  a,  t,  C,  tj,  t,  it  agrees
with  A.     I  do  not  see  that  in  any  place  it  diifers  from  both.
What  is  more  worthy  of  observation  is,  that  all  the  varieties
seem  to  be  purely  technical,  and  I  have  not  observed  that  a
word  has  been  changed  except  as  a  misprint.
