I never really knew what the term "mudsill" meant, my boy, until I saw Captain Bob Shorty on Tuesday. I was out in a field, just this side of Fort Corcoran, trimming down the ears of my gothic steed Pegasus, that he might look less like a Titanic rabbit, when I saw approaching me an object resembling a brown-stone monument. As it came nearer, I discovered an eruption of brass buttons at intervals in front, and presently I observed the lineaments of a Federal face. "Strange being!" says I, taking down a pistol from the natural rack on the side of my steed, and at the same time motioning toward my sword, which I had hung on one of his hip bones, "Art thou the shade of Metamora, or the disembodied spirit of a sand-bank?" "My ducky darling," responded the æolian voice of Captain Bob Shorty, "you behold a mudsill just emerged from a liquified portion of the sacred soil. The mud at present inclosing the Mackerel Brigade is unpleasant to the personal feelings of the corps, but the effect at a distance is unique. As you survey that expanse of mud from Arlington Heights," continued Captain Bob Shorty, "with the veterans of the Mackerel Brigade wading about in it up to their chins, you are forcibly reminded of a limitless plum-pudding, well stocked with animated raisins." "My friend," says I, "the comparison is apt, and reminds me of Shakspeare's happier efforts. But tell me, my Pylades, has the dredging for those missing regiments near Alexandria proved successful?" Captain Bob Shorty shook the mire from his ears, and then, says he: "Two brigades were excavated this morning, and are at present building a raft to go down to Washington after some soap. Let us not utter complaints against the mud," continued Captain Bob Shorty, reflectively, "for it has served to develop the genius of New England. We dug out a Yankee regiment from Boston first, and the moment those wooden-nutmeg chaps got their breath, they went to work at the mud that had almost suffocated them, mixed up some spoiled flour with it, and are now making their eternal fortunes by peddling it out for patent cement."