The tryals of Sir Henry Slingsby Kt. and John Hewet D.D. for high treason, in Westminster-Hall. : Together with the Lord President's speech before the sentence of death was pronounced against the afore-named Sir H. Slingsby and Dr Hewet, being June 2. 1658. At which time the said Mr. Mordant was by the court acquitted. As also, the manner of their execution on Tower-Hill, the eighth of June following: with the substance of their speeches on the scaffold.