Middle brook, May 17, 1779.

    Dr. Sir: Your favor of 4 Oclock yesterday afternoon came to my hands this morning. The suggestions contained in it, I had before heard from New York; but thank you nevertheless for your attention, and communication of them.

    I have no idea of the Convention Troops being rescued by the detachment from N. Yk. but if it shd. take Post at the nearest navigation to their cantonmt. it would countenance desertion, and be a means of obtaining many of them in that way. I shall endeavour as much as possible to prevent this.

    If the Gentn. whose name I mentioned to you in my last, is inclined to undertake that business, and should be in want of a little specie for the purposes there expressed, I will spare part of my small stock. To know the real strength and situation of the enemy, their detachments, reinforcements, designs, expectations, &ca., is essential. Equally important may it be, to know frequently, what Ships of War and other Armed Vessels are in the harbour of New York.

    The inclosed was brought to me by Genl. Thompson. If Mr. Pintard will enquire into the truth of the representation, and give or destroy the pass as facts may appear I shall be obliged to him. I am, etc.