A copie of the commission sent from His Majestie to the conspirators of the citie of London : for the raysing an army of horse and foot, and levying of money, plate, ammunition, &c. : whereby also power is given to these commissioners, or any foure of them to execute martiall law, to kill and slay all those that shall oppose them or all such as are under the command of His Excellencie the Earle of Essex.