8. Manner of giving notice calling for particulars about property under Section 11.

9.
(a) the number of steamers or flats mooring at any place on the river within 400 yards of the flood protection works during the period to which the return relates and
(b) the date and hour of arrival and departure of every such steamer or flat, and
(c) the carrying capacity of every such steamer or flat; and
(d) any other information which may be called for by the Collector for the purpose of this rule.