
IN April, 1848, the author of the present volume left England in
company with Mr. A. R. Wallace on
a joint expedition up the river Amazons, for the purpose of
investigating the Natural History of the vast wood-region
traversed by that mighty river and its numerous tributaries. Mr.
Wallace returned to England after four years' stay, and was, we
believe, unlucky enough to lose the greater part of his
collections by the shipwreck of the vessel in which he had
transmitted them to London. Mr. Bates prolonged his residence in
the Amazon valley seven years after Mr. Wallace's departure, and
did not revisit his native country again until 1859....