VII. A ballot paper shall be invalid
(a) Upon which a member signs his name or writes any word, or makes any mark by which it becomes recognizable; or
(b) Which does not bear the perforated mark; or
(c) On which the figure 1 is not marked; or
(d) On which the figure 1 is set opposite the name of more than one candidate; or
(e) On which the figure 1 and some other figure is set opposite the name of the same candidate; or
(f) Which is unmarked or void for uncertainty.
VIII. In carrying out these rules the returning officer shall
(a) Disregard all fractions;
(b) Ignore all preferences recorded for candidates already elected or excluded from the poll.