Among the letters that Clemens wrote just then was one to Miss Wallace, in which he described the glory of the fall colors as seen from his windows.

The autumn splendors passed you by? What a pity! I wish you had
been here. It was beyond words! It was heaven & hell & sunset &
rainbows & the aurora all fused into one divine harmony, & you
couldn't look at it and keep the tears back.
Such a singing together, & such a whispering together, & such a
snuggling together of cozy, soft colors, & such kissing & caressing,
& such pretty blushing when the sun breaks out & catches those
dainty weeds at it—you remember that weed-garden of mine?—& then
—then the far hills sleeping in a dim blue trance—oh, hearing
about it is nothing, you should be here to see it!

In the same letter he refers to some work that he was writing for his own satisfaction—'Letters from the Earth'; said letters supposed to have been written by an immortal visitant and addressed to other immortals in some remote sphere.

I'll read passages to you. This book will never be published
—in fact it couldn't be, because it would be felony... Paine
enjoys it, but Paine is going to be damned one of these days, I
suppose.

I very well remember his writing those 'Letters from the Earth'. He read them to me from time to time as he wrote them, and they were fairly overflowing with humor and philosophy and satire concerning the human race. The immortal visitor pointed out, one after another, the absurdities of mankind, his ridiculous conception of heaven, and his special conceit in believing that he was the Creator's pet—the particular form of life for which all the universe was created. Clemens allowed his exuberant fancy free rein, being under no restrictions as to the possibility of print or public offense. He enjoyed them himself, too, as he read them aloud, and we laughed ourselves weak over his bold imaginings.

One admissible extract will carry something of the flavor of these chapters. It is where the celestial correspondent describes man's religion.

His heaven is like himself: strange, interesting, astonishing,
grotesque. I give you my word it has not a single feature in it
that he actually values. It consists—utterly and entirely—of
diversions which he cares next to nothing about here in the earth,
yet he is quite sure he will like in heaven. Isn't it curious?
Isn't it interesting? You must not think I am exaggerating, for it
is not so. I will give you the details.
Most, men do not sing, most men cannot sing, most men will not stay
where others are singing if it be continued more than two hours.
Note that.
Only about two men in a hundred can play upon a musical instrument,
and not four in a hundred have any wish to learn how. Set that
down.
Many men pray, not many of them like to do it. A few pray long, the
others make a short-cut.
More men go to church than want to.
To forty-nine men in fifty the Sabbath day is a dreary, dreary bore.
Further, all sane people detest noise.
All people, sane or insane, like to have variety in their lives.
Monotony quickly wearies them.
Now then, you have the facts. You know what men don't enjoy. Well,
they have invented a heaven, out of their own heads, all by
themselves; guess what it is like? In fifteen hundred years you
couldn't do it. They have left out the very things they care for
most their dearest pleasures—and replaced them with prayer!
In man's heaven everybody sings. There are no exceptions. The man
who did not sing on earth sings there; the man who could not sing on
earth sings there. Thus universal singing is not casual, not
occasional, not relieved by intervals of quiet; it goes on all day
long and every day during a stretch of twelve hours. And everybody
stays where on earth the place would be empty in two hours. The
singing is of hymns alone. Nay, it is one hymn alone. The words
are always the same in number—they are only about a dozen—there is
no rhyme—there is no poetry. “Hosanna, hosanna, hosanna unto the
highest!” and a few such phrases constitute the whole service.
Meantime, every person is playing on a harp! Consider the deafening
hurricane of sound. Consider, further, it is a praise service—a
service of compliment, flattery, adulation. Do you ask who it is
that is willing to endure this strange compliment, this insane
compliment, and who not only endures it but likes it, enjoys it,
requires it, commands it? Hold your breath: It is God! This race's
God I mean—their own pet invention.

Most of the ideas presented in this his last commentary on human absurdities were new only as to phrasing. He had exhausted the topic long ago, in one way or another; but it was one of the themes in which he never lost interest. Many subjects became stale to him at last; but the curious invention called man remained a novelty to him to the end.

From my note-book:

October 25. I am constantly amazed at his knowledge of history—all
history—religious, political, military. He seems to have read
everything in the world concerning Rome, France, and England
particularly.
Last night we stopped playing billiards while he reviewed, in the
most vivid and picturesque phrasing, the reasons of Rome's decline.
Such a presentation would have enthralled any audience—I could not
help feeling a great pity that he had not devoted some of his public
effort to work of that sort. No one could have equaled him at it.
He concluded with some comments on the possibility of America
following Rome's example, though he thought the vote of the people
would always, or at least for a long period, prevent imperialism.
November 1. To-day he has been absorbed in his old interest in
shorthand. “It is the only rational alphabet,” he declared. “All
this spelling reform is nonsense. What we need is alphabet reform,
and shorthand is the thing. Take the letter M, for instance; it is
made with one stroke in shorthand, while in longhand it requires at
least three. The word Mephistopheles can be written in shorthand
with one-sixth the number of strokes that is required in longhand.
I tell you shorthand should be adopted as the alphabet.”
I said: “There is this objection: the characters are so slightly
different that each writer soon forms a system of his own and it is
seldom that two can read each other's notes.”
“You are talking of stenographic reporting,” he said, rather warmly.
“Nothing of the kind is true in the case of the regular alphabet.
It is perfectly clear and legible.”
“Would you have it in the schools, then?”
“Yes, it should be taught in the schools, not for stenographic
purposes, but only for use in writing to save time.”
He was very much in earnest, and said he had undertaken an article
on the subject.
November 3. He said he could not sleep last night, for thinking
what a fool he had been in his various investments.
“I have always been the victim of somebody,” he said, “and always an
idiot myself, doing things that even a child would not do. Never
asking anybody's advice—never taking it when it was offered. I
can't see how anybody could do the things I have done and have kept
right on doing.”
I could see that the thought agitated him, and I suggested that we
go to his room and read, which we did, and had a riotous time over
the most recent chapters of the 'Letters from the Earth', and some
notes he had made for future chapters on infant damnation and other
distinctive features of orthodox creeds. He told an anecdote of an
old minister who declared that Presbyterianism without infant
damnation would be like the dog on the train that couldn't be
identified because it had lost its tag.
Somewhat on the defensive I said, “But we must admit that the so-
called Christian nations are the most enlightened and progressive.”
He answered, “Yes, but in spite of their religion, not because of
it. The Church has opposed every innovation and discovery from the
day of Galileo down to our own time, when the use of anesthetics in
child-birth was regarded as a sin because it avoided the biblical
curse pronounced against Eve. And every step in astronomy and
geology ever taken has been opposed by bigotry and superstition.
The Greeks surpassed us in artistic culture and in architecture five
hundred years before the Christian religion was born.
“I have been reading Gibbon's celebrated Fifteenth Chapter,” he said
later, “and I don't see what Christians found against it. It is so
mild—so gentle in its sarcasm.” He added that he had been reading
also a little book of brief biographies and had found in it the
saying of Darwin's father, “Unitarianism is a featherbed to catch
falling Christians.”
“I was glad to find and identify that saying,” he said; “it is so
good.”
He finished the evening by reading a chapter from Carlyle's French
Revolution—a fine pyrotechnic passage—the gathering at Versailles.
I said that Carlyle somehow reminded me of a fervid stump-speaker
who pounded his fists and went at his audience fiercely, determined
to convince them.
“Yes,” he said, “but he is the best one that ever lived.”
November 10. This morning early he heard me stirring and called. I
went in and found him propped up with a book, as usual. He said:
“I seldom read Christmas stories, but this is very beautiful. It
has made me cry. I want you to read it.” (It was Booth
Tarkington's 'Beasley's Christmas Party'.) “Tarkington has the true
touch,” he said; “his work always satisfies me.” Another book he
has been reading with great enjoyment is James Branch Cabell's
Chivalry. He cannot say enough of the subtle poetic art with which
Cabell has flung the light of romance about dark and sordid chapters
of history.