"Fall in, men!" for now here they come, sure enough. Mr. and Mrs. Lincoln in a carriage, escorted by a body of cavalry and groups of officers, and at the head of the cavalcade Master Tad, big with importance, mounted on a pony, and having for his especial escort a boy orderly, dressed in a cavalry-man's uniform, and mounted on another pony! And the two little fellows, scarce restraining their boyish delight, outride the company, and come on the field in a cloud of dust and at a full gallop,—little Tad shouting to the men, at the top of his voice: "Make way, men! Make way, men! Father's a-coming! Father's a-coming!"

Then the artillery breaks forth into a thundering salute, that wakes the echoes among the hills and sets the air to shivering and quaking about your ears, as the cavalcade gallops down the long line, and regimental standards droop in greeting, and bands and drum corps, one after another, strike up "Hail to the Chief," till they are all playing at once in a grand chorus that makes the hills ring as they never rang before.

But all this is only a flourish by way of prelude. The real beauty of the review is yet to come, and can be seen only when the cavalcade, having galloped down the line in front and up again on the rear, has taken its stand out yonder immediately in front of the middle of the line, and the order is given to "pass in review."

Notice now, how, by one swift and dexterous movement, as the officers step out and give the command, that long line is broken into platoons of exactly equal length; how, straight as an arrow, each platoon is dressed; how the feet of the men all move together, and their guns, flashing in the sun, have the same inclination. Observe particularly how, when they come to wheel off, there is no bend in the line, but they wheel as if the whole platoon were a ramrod made to revolve about its one end through a quarter-circle; and now that they are marching thus down the field and past the President, what a grandeur there is in the steady step and onward sweep of that column of twenty thousand boys in blue!

But once we have passed the President and gained the other end of the field, it is not nearly so fine. For we must needs finish the review in a double-quick, just by way of showing, I suppose, what we could do if we were wanted in a hurry,—as indeed we shall be, not more than sixty days hence! Away we go, then, on a dead run off the field, in a cloud of dust and amid a clatter of bayonet-scabbards, till, hid behind the hills, we come to a more sober pace, and march into camp just as tired as tired can be.

CHAPTER VI.
ON PICKET ALONG THE RAPPAHANNOCK.

"Harry, wouldn't you like to go out on picket with us to-morrow? The weather is pleasant, and I'd like to have you for company, for time hangs rather heavy on a fellow's hands out there; and, besides, I want you to help me with my Latin."