legs of the negro children paddling in the tints of the prostrate
rainbow.

All this seems probable and natural enough at the writing; but how will
it be when one has turned one's back upon it? Will it not lapse into the
gross fable of travellers, and be as the things which the liars who swap
them cannot themselves believe? What will be said to you when you tell
that in the Summer Islands one has but to saw a hole in his back yard and
take out a house of soft, creamy sandstone and set it up and go to living
in it? What, when you relate that among the northern and southern
evergreens there are deciduous trees which, in a clime where there is no
fall or spring, simply drop their leaves when they are tired of keeping
them on, and put out others when they feel like it? What, when you
pretend that in the absence of serpents there are centipedes a span long,
and spiders the bigness of bats, and mosquitoes that sweetly sing in the
drowsing ear, but bite not; or that there are swamps but no streams, and
in the marshes stand mangrove-trees whose branches grow downward into the
ooze, as if they wished to get back into the earth and pull in after them
the holes they emerged from?

These every-day facts seem not only incredible to the liar himself, even
in their presence, but when you begin the ascent of that steep slant back
to New York you foresee that they will become impossible. As impossible
as the summit of the slant now appears to the sense which shudderingly
figures it a Bermuda pawpaw-tree seven hundred miles high, and fruiting
icicles and snowballs in the March air!