12. On receipt in the Collector's office of the maps or papers showing any boundaries which have been demarcated, the Collector shall cause a notification to be posted in his office, and in such other places as he may think proper, informing all persons concerned that the maps and papers relating to the boundaries in the village or tract specified are open to inspection; and requiring any person who may have any objections to prefer, to prefer such objections within six weeks of the date of the posting of such notification, after which time the Collector will proceed finally to confirm the boundaries as laid down for the purpose of the survey.