literary child, always tickles my vanity more than that of any of
my other books. Even to this day it sells steadily in England
and the United States, and has been translated for the second
time into German, and into French and other languages. This
success of a book of travels, especially of a scientific one, so
many years after its first publication, is surprising. Ten
thousand copies have been sold in England of the second edition.
In 1846 my 'Geological Observations on South America' were
published. I record in a little diary, which I have always kept,
that my three geological books ('Coral Reefs' included) consumed
four and a half years' steady work; "and now it is ten years
since my return to England. How much time have I lost by
illness?" I have nothing to say about these three books except
that to my surprise new editions have lately been called for.
('Geological Observations,' 2nd Edit.1876. 'Coral Reefs,' 2nd
Edit. 1874.)

In October, 1846, I began to work on 'Cirripedia.' When on the
coast of Chile, I found a most curious form, which burrowed into
the shells of Concholepas, and which differed so much from all
other Cirripedes that I had to form a new sub-order for its sole
reception. Lately an allied burrowing genus has been found on
the shores of Portugal. To understand the structure of my new
Cirripede I had to examine and dissect many of the common forms;
and this gradually led me on to take up the whole group. I
worked steadily on this subject for the next eight years, and
ultimately published two thick volumes (Published by the Ray
Society.), describing all the known living species, and two thin
quartos on the extinct species. I do not doubt that Sir E.
Lytton Bulwer had me in his mind when he introduced in one of his