Revolutionary War era document

Extract of a Representation made by General Washington to a Committee of Congress, January 29, 1778
A Collection of Papers relative to Half-Pay and Communication Thereof, Granted by Congress to the Officers of the Army, Together with a Circular Letter from His Excellency General Washington, to the several Legislatures of the United States
Printed by order of the General Court of the Commonwealth of Massachusetts 1783

Year (or year range): 
Approximate era: 
before 1800