By the letter that will accompany this, and was to have gone last night by Major Mifflin, your Excellency will see what measures I took before your favor came to hand. The passing of the ships up the river is, to be sure, a full proof of the insufficiency of the obstructions in the river to stop the ships from going up; but that garrison employs double the number of men to invest it that we have to occupy it. They must keep troops at King's Bridge, to prevent a communication with the country; and they dare not leave a very small number, for fear our people should attack them.

Letter to George Washington (9 October 1776)