h Mark was running down stream after it as hard as he
could go, throwing up his hands and shouting in the wildest ecstasy,
and when a piece went over a fall and emerged to view in the foam
below he would jump up and down and yell. He said afterward that he
had not been so excited in three months."

In other places Twichell refers to his companion's consideration for
the feeling of others, and for animals. "When we are driving, his
concern is all about the horse. He can't bear to see the whip used,
or to see a horse pull hard."

After the walk over Gemmi Pass he wrote: "Mark to-day was immensely
absorbed in flowers. He scrambled around and gathered a great variety,
and manifested the intensest pleasure in them. He crowded a pocket of
his note-book with his specimens, and wanted more room."

Whereupon Twichell got out his needle and thread and some stiff paper he
had and contrived the little paper bag to hang to the front of his vest.

The tramp really ended at Lausanne, where Clemens joined his party,
but a short excursion to Chillon and Chamonix followed, the travelers
finally separating at Geneva, Twichell to set out for home by way of
England, Clemens to remain and try to write the story of their travels.
He hurried a good-by letter after his comrade:

*****

To Rev. J. H. Twichell:

(No date)

DEAR OLD JOE,--It is actually all over! I was so low-spirited at the
station yesterday, and this morning, when I woke, I couldn't seem to
accept the dismal truth that you were really gone, and the pleasant
tramping and talking at an end. Ah, my boy! it has been such a rich
holiday to me, and I feel under such deep and honest obligations to you
for coming. I am putting out of my mind all memory of the times when
I misbehaved toward you and hurt you: I am resolved to consider it
forgiven, and to store up and remember only the charming hours of the
journeys and the times when I was not unworthy to be with you and share
a companionship which to me stands first after Livy's. It is justifiable
to do this; for why should I let my small infirmities of disposition
live and grovel among my mental pictures of the eternal sublimities of
the Alps?

Livy can't accept or endure the fact that you are gone. But you are,
and we cannot get around it. So take our love with you, and bear it also
over the sea to Harmony, and God bless yo