nothingness at the other. We met an everlasting procession
of guides, porters, mules, litters, and tourists climbing
up this steep and muddy path, and there was no room
to spare when you had to pass a tolerably fat mule.
I always took the inside, when I heard or saw the
mule coming, and flattened myself against the wall.
I preferred the inside, of course, but I should have had
to take it anyhow, because the mule prefers the outside.
A mule's preference--on a precipice--is a thing to
be respected. Well, his choice is always the outside.
His life is mostly devoted to carrying bulky panniers
and packages which rest against his body--therefore he
is habituated to taking the outside edge of mountain paths,
to keep his bundles from rubbing against rocks or banks
on the other. When he goes into the passenger business he
absurdly clings to his old habit, and keeps one leg of his
passenger always dangling over the great deeps of the lower
world while that passenger's heart is in the highlands,
so to speak. More than once I saw a mule's hind foot
cave over the outer edge and send earth and rubbish into
the bottom abyss; and I noticed that upon these occasions
the rider, whether male or female, looked tolerably unwell.

There was one place where an eighteen-inch breadth of
light masonry had been added to the verge of the path,
and as there was a very sharp turn here, a panel of fencing
had been set up there at some time, as a protection.
This panel was old and gray and feeble, and the light
masonry had been loosened by recent rains. A young
American girl came along on a mule, and in making the turn