Section 1251(b) in Police Regulations, Bengal , 1943
(b)This register is divided into groups of four pages, one group being assigned to each station and outpost; the buildings in the Reserve lines to be counted as one station. If all the buildings cannot be entered on the second page of the group, two or more pages should be used, but the first page of the group should be filled up only once for each set of buildings. If there be other detached buildings at headquarters or sub-divisions, they shall be entered in a separate group. There should be an index at the beginning of the book.