of that contrivance was wholly due to a single traveller, the late Dr.
Barth.

The first Edition of the 'Art of Travel' was published in 1854: it was
far less comprehensive than the later ones; for my materials steadily
accumulate, and each successive Edition has shown a marked improvement on
its predecessor. Hitherto I have adhered to the original arrangement of
the work, but am now obliged to deviate from it, for the contents have
outgrown the system of classification I first adopted. Before I could
interpolate the new matter prepared for this Edition, I found it
necessary to recast the last one, by cutting it into pieces, sorting it
into fresh paragraphs and thoroughly revising the writing--disentangling
here and consolidating there. The present Edition will consequently be
found more conveniently arranged than those that preceded it, and, at the
same time, I trust the copiousness of its Index will enable persons to
find with readiness any passage they had remarked in a former Edition,
and to which they may desire again to refer.

I am still most thankful to strangers as well as to friends for
contributions of hints or corrections, having been indebted to many a
previously unknown correspondent for valuable information. I beg that
such communications may be addressed to me, care of my publisher, Mr.
Murray, 50, Albermarle Street, London.

* * * * *

P.S.--A reviewer of my Third Edition accused me of copying largely from
an American book, called 'The Prairie Traveller,' by, the then, Capt.
Randolph B. Marcy. I therefore think it well to remark that the first
Edition of that work was published in 1859 (Harper and Brothers, New