By &c. &c.
Having thought it necessary for the present to Station the Experiment under your Command at Billingsport, for the better preserving the open Communication of the River; You are hereby required and directed to place the Ship near that place, and to afford all possible Assistance and protection to Ships passing the Obstructions layed down by the Enemy between Mud Island and Billingsport.
And whereas the Passage through the lower Chevaux de Frize is at present very narrow and confined; it is most earnestly recommended to You whilst you remain on this Service to Use every means in your power to widen the Passage by either removing some of the Chevaux de Frize, or pulling them to pieces as you shall think fit; and any materials, or Assistance that you may require on this important Business, will be most readily granted upon your Application.
The Boats employed on the River in Supplying the Town with Provisions, having regular Passes from the Majistrates of the Police, and limited for a certain time, are to be allowed to pass without hindrance or Molestation, provided they call onboard to shew their permission.
Given &c. [on board the Roebuck at Philadelphia] 11th. March 1778.
