19In paragraph 3(3) of Schedule 20 to the [1965 c. 25.] Finance Act 1965 (which allows to a member of a group of companies as part of the current overspill under section 84(2) of that Act the appropriate part of another member's excess of current overspill over its relief) for the words " the amount of the relief (before abatement) falling to be given to the other member " there shall be substituted the words " the amount of the relief under the principal section (calculated apart only from any reduction under the proviso to subsection (1) of that section) falling to be given to the other member ".