Two men starving on a raft. The pauper has a Boston cracker,
resolves to keep it till the multimillionaire is beginning to
starve, then make him pay $50,000 for it. Millionaire agrees.
Pauper's cupidity rises, resolves to wait and get more; twenty-four
hours later asks him a million for the cracker. Millionaire agrees.
Pauper has a wild dream of becoming enormously rich off his cracker;
backs down; lies all night building castles in the air; next day
raises his price higher and higher, till millionaire has offered
$100,000,000, every cent he has in the world. Pauper accepts.
Millionaire: “Now give it to me.”
Pauper: “No; it isn't a trade until you sign documental history of
the transaction and make an oath to pay.”
While pauper is finishing the document millionaire sees a ship.
When pauper says, “Sign and take the cracker,” millionaire smiles a
smile, declines, and points to the ship.

Yet this is hardly more extravagant than another idea that is mentioned repeatedly among the notes—that of an otherwise penniless man wandering about London with a single million-pound bank-note in his possession, a motif which developed into a very good story indeed.

IDEA FOR “STORMFIELD'S VISIT TO HEAVEN”
In modern times the halls of heaven are warmed by registers
connected with hell; and this is greatly applauded by Jonathan
Edwards, Calvin, Baxter and Company, because it adds a new pang to
the sinner's sufferings to know that the very fire which tortures
him is the means of making the righteous comfortable.

Then there was to be another story, in which the various characters were to have a weird, pestilential nomenclature; such as “Lockjaw Harris,” “Influenza Smith,” “Sinapism Davis,” and a dozen or two more, a perfect outbreak of disorders.

Another—probably the inspiration of some very hot afternoon—was to present life in the interior of an iceberg, where a colony would live for a generation or two, drifting about in a vast circular current year after year, subsisting on polar bears and other Arctic game.

An idea which he followed out and completed was the 1002d Arabian Night, in which Scheherazade continues her stories, until she finally talks the Sultan to death. That was a humorous idea, certainly; but when Howells came home and read it in the usual way he declared that, while the opening was killingly funny, when he got into the story itself it seemed to him that he was “made a fellow-sufferer with the Sultan from Scheherazade's prolixity.”

“On the whole,” he said, “it is not your best, nor your second best; but all the way it skirts a certain kind of fun which you can't afford to indulge in.”

And that was the truth. So the tale, neatly typewritten, retired to seclusion, and there remains to this day.

Clemens had one inspiration that summer which was not directly literary, but historical, due to his familiarity with English dates. He wrote Twichell:

Day before yesterday, feeling not in condition for writing, I left
the study, but I couldn't hold in—had to do something; so I spent
eight hours in the sun with a yardstick, measuring off the reigns of
the English kings on the roads in these grounds, from William the
Conqueror to 1883, calculating to invent an open-air game which
shall fill the children's heads with dates without study. I give
each king's reign one foot of space to the year and drive one stake
in the ground to mark the beginning of each reign, and I make the
children call the stake by the king's name. You can stand in the
door and take a bird's-eye view of English monarchy, from the
Conqueror to Edward IV.; then you can turn and follow the road up
the hill to the study and beyond with an opera-glass, and bird's-eye
view the rest of it to 1883.
You can mark the sharp difference in the length of reigns by the
varying distances of the stakes apart. You can see Richard II., two
feet; Oliver Cromwell, two feet; James II., three feet, and so on
—and then big skips; pegs standing forty-five, forty-six, fifty,
fifty-six, and sixty feet apart (Elizabeth, Victoria, Edward III.,
Henry III., and George III.). By the way, third's a lucky number
for length of days, isn't it? Yes, sir; by my scheme you get a
realizing notion of the time occupied by reigns.
The reason it took me eight hours was because, with little Jean's
interrupting assistance, I had to measure from the Conquest to the
end of Henry VI. three times over, and besides I had to whittle out
all those pegs.
I did a full day's work and a third over, yesterday, but was full of
my game after I went to bed trying to fit it for indoors. So I
didn't get to sleep till pretty late; but when I did go off I had
contrived a new way to play my history game with cards and a board.