Section 81. Titles and head notes

If the title of any article or other
  division of a statute, or the head note of a section shall be amended or
  repealed in the body of the statute,  or  if  a  new  article  or  other
  division  having  a  title,  or  a new section having a new head note be
  added to a statute, the corresponding title or head note, if any, in  an
  abstract  of  contents at the beginning of the statute, article or other
  division of the statute shall be deemed to be correspondingly amended or
  repealed, although there be no express reference thereto.