Section 8. The return of said notice shall not be less than thirty days nor more than one year from the date of issue. The Chief of the General Registration Office shall also, within seven days after the publication of said notice in the Official Gazette, as hereinbefore provided, cause a copy of the notice to be mailed to every person named therein whose address is known. Said official shall also cause a duly attested copy of the notice to be posted, in a conspicuous place on the lands included in the petition and also in a conspicuous place upon the chief municipal building of the city, municipality, township or settlement in which the lands or a portion thereof are situated, by the sheriff of the province, or by his deputy, or by such other person as may be designated by the Chief of the General Land Registration Office, fourteen days at least before the return day thereof. A copy of the notice shall also be sent by registered mail to the Mayor of the city, municipality, township or settlement in which the lands are situated, and to the Provincial Governor. The court may cause other or further notice of the petition to be given in such manner and to such persons as it may deem proper.