and explored includes Sumatra,
Java, Borneo, Celebes, the Moluccas, Timor, New Guinea, the Aru and Ke
Islands. Comparing this list with that given by Darwin at the close of
the "Journal," we find that though in some respects the ground covered
by the two men was similar, it never actually overlapped. The countries
and islands visited by the _Beagle_ came in the following order: Cape de
Verde Islands, St. Paul's Rocks, Fernando Noronha, South America
(including the Galapagos Archipelago, the Falkland Isles, and Tierra del
Fuego), Tahiti, New Zealand, Australia, Tasmania, Keeling Island,
Maldive coral atolls, Mauritius, St. Helena, Ascension. Brazil was
revisited for a short time, and the _Beagle_ touched at the Cape de
Verde Islands and the Azores on the homeward voyage.

The very nature of this voyage did not permit Darwin to give unlimited
time to the study of any particular spot or locality; but his accurate
observation of every detail, together with his carefully kept journal,
afforded ample scope and foundation for future contemplation. To
Wallace, the outstanding result may be summed up in the fact that he
discovered that the Malay Archipelago is divided into a western group of
islands, which in their zoological affinities are Asiatic, and an
eastern, which are Australian. The Oriental Borneo and Bali are
respectively divided from the Australian Celebes and Lombok by a narrow
belt of sea known as "Wallace's line," on the opposite side of which the
indigenous mammalia are as widely divergent as in any two parts of the
world.

To both men Darwin's estimate of the influence of travel may aptly apply
in the sense that from a geographical point of view "the map of the
world ceases to be a blank ... each part assumes its proper dimensions,"
continents are no longer considered islands, nor islands as mere specks.

Wallace's homeward journey was not so eventful as the previous one had
been, except for the unsuccessful efforts to bring back several species
of live birds, which, with the exception of his birds of paradise, died
on the way. On reaching London in the spring of 1862, he again made his
home with his married sister, Mrs. Sims (who was living in Westbourne
Grove). In a large empty room at the top of the house he found himself
surrounded with packing-cases which he had not seen for five or six
years, and which, together with his recent collections, absorbed his
time and interest for the first few weeks. Later, h