A SOLDIER’S LETTER.We publish by permission of tho relations to whom it was written, the following letter from Jas. P. Pratt, of this city, Lieuten-aut in the llih U. S. Infantry, dow lying; near the Rappahannock. It was written 1 as a private letter, and bcnco embodying the heart-feelings of the writer, will bo i y ' interesting to our readers who know him ; so well. It bears the tone of the enthus -astio soldier who is ready for every duty in the service of bis country:* | Headquarters 11th Infantry, Camf near Falmoutu, Va.,Si April 17, 1803._ I I think I am getting to bo a prodigy in a ; the way of a correspondent—the second h j letter home without waiting for an answer, d We have had a horrible soaking time ot ; it for forty-eight hours, with little prospect o of a hold up.g 1 [Here follows interesting information, g i which is contraband of war ] d | I had a glorious ri le yesterday afternoon 9- ; —a friend of mine, Clay of tho 14th, and b j myself, took two splendid animals belong I ing to the ambulance corps—a part of* I which he has command of—and started forJ-(Falmouth. We rushed by regiments,) - i divisions, and corps at a magnificent gallop, j 6 land on a broad, hard road lately built. In i s 1 an hour or so we were in eight of tho Rap-! pabannock, aud, after hard scrambling,6 ‘ reached tho top of a hill overlooking the . ; whole scene. Oq the bill was a battery, a and dismounting, we sat on the sand-bag3,0 1 held the reins of onr horses in our bands, ’f , lit the never-failing companions—tho meerschaums—and-looked!