Service of summons .—The summons shall be served by delivering a copy thereof to the person summonedor to his authorised agent or to some adult male member of his

family residing with him, who shall be required to sign an acknowledgement of service endorsed on the original summons .If such person refuses to acknowledge service of the summons as aforesaid, or if the person summoned cannot be found there is no other person on whom the service can be made, the serving officer shall affix a copy of the summons on the outer door of the house in which the person summoned ordinarily resides and return the original with an endorsement attested by two respectable witnesses stating that he has so affixed a copy and the circumstances under which he did so.