The last speech and testimony of that famous and faithful minister and martyr of Jesus Christ, Mr. Donald Cargil, sometime Minister of the Gospel in the Barony Parish of Glasgow; delivered by him in Writing before his Execution at the Cross of Edinburgh, July 27. 1681. With his last Words upon the Scaffold. With his Letter to John Malcom and Archibald Allison Martyrs. To which is added, An Encomium on the Martyrs contain'd in the Cloud of Witnesses.