The Summons shall be served upon the Defendant by the Barmaster Fourteen clear Days at least before the Day appointed for the Trial, by leaving such Summons at the usual or last known Place of Abode of such Defendant, or, if the Defendant shall not reside within the Jurisdiction of the Barmote Court, by affixing a Copy thereof at the Place where the last preceding Great Barmote Court was held, and by serving another Copy of such Summons upon the Agent of the Mine, if such Agent is resident within the Jurisdiction of the Barmote Court; and upon Proof of the Service of such Summons, the Plaintiff shall be at liberty, if the Defendant do not appear, to proceed to Trial, and if the Steward shall think that he is entitled to recover he shall have Judgment: Provided always, that in Cases where there are more Defendants than One, Service on One of such Defendants, and on the Agent of the Mine (if any) resident as aforesaid, shall be deemed sufficient.