vessels, known as privateers, shall be exchanged upon the conditions and
terms following:

Prisoners to be exchanged man for man and officer for officer.
Privateers to be placed upon the footing of officers and men of the navy.

Men and officers of lower grades may be exchanged for officers of a
higher grade, and men and officers of different services may be exchanged
according to the following scale of equivalents:

A General-commanding-in-chief, or an Admiral, shall be exchanged for
officers of equal rank, or for sixty privates or common seamen.

A Commodore, carrying a broad pennant, or a Brigadier General, shall be
exchanged for officers of equal rank, or twenty privates or common
seamen.

A Captain in the Navy, or a Colonel, shall be exchanged for officers of
equal rank, or for fifteen privates or common seamen.

A Lieutenant Colonel, or Commander in the Navy, shall be exchanged for
officers of equal rank, or for ten privates or common seamen.

A Lieutenant, or a Master in the Navy, or a Captain in the Army or
marines shall be exchanged for officers of equal rank, or six privates or
common seamen.

Master's-mates in the Navy, or Lieutenants or Ensigns in the Army, shall
be exchanged for officers of equal rank, or four privates or common
seamen. Midshipmen, warrant officers in the Navy, masters of merchant