as I can remember:
He come a-loping into Washington, and put up his horse and shoved out to the President's house with his letter, and they told him the President was up to the Capitol, and just going to start for Philadelphia -- not a minute to lose if he wanted to catch him. Nat 'most dropped, it made him so sick. His horse was put up, and he didn't know what to do. But just then along comes a darky driving an old ramshackly hack, and he see his chance. He rushes out and shouts: "A half a dollar if you git me to the Capitol in half an hour, and a quarter extra if you do it in twenty minutes!"
"Done!" says the darky.
Nat he jumped in and slammed the door, and away they went a-ripping and a-tearing over the roughest road a body ever see, and the racket of it was some- thing awful. Nat passed his arms through the loops and hung on for life and death, but pretty soon the hack hit a rock and flew up in the air, and the bottom fell out, and when it come down Nat's feet was on the ground, and
quite enjoyable,although it ended far to abruptly.
This little-known sequel to "The Adventures of Huckleberry Finn" has Tom, Huck and Jim soaring across the Atlantic to Africa in a dirigible balloon invented by a mad professor. It's rollicking fun while it lasts, with Twain's typical satirical touches... but the story peters out at the end, as if the author had lost interest. Still well worth reading if you're a fan of the Huck & Tom adventures, though!