My last particular Letter to your Excellency, was dated the 3 d . of October last, by Major Franks. I now transmit a Duplicate of it by M r . Stephen Codman, a Young Gentleman of Boston, who is passing through this City to Cadiz, from whence he will either be the bearer of it himself to America, or forward it by some Person of Confidence. From the Date of that Letter to this Day, the Minister...