"I think much more highly of my book on Volcanic Islands since Mr Judd, by
far the best judge on the subject in England, has, as I hear, learnt much
from it." (Autobiography, 1876.)

1845:

Publication of the "Journal of Researches" as a separate book.

1846:

Publication of "Geological Observations on South America"; being Part III.
of the "Geology of the Voyage of the 'Beagle'".

1851:

Publication of a "Monograph of the Fossil Lepadidae" and of a "Monograph of
the sub-class Cirripedia".

"I fear the study of the Cirripedia will ever remain 'wholly unapplied,'
and yet I feel that such study is better than castle-building."

1854:

Publication of Monographs of the Balanidae and Verrucidae.

"I worked steadily on this subject for...eight years, and ultimately
published two thick volumes, describing all the known living species, and
two thin quartos on the extinct species...My work was of considerable use
to me, when I had to discuss in the "Origin of Species" the principles of a
natural classification. Nevertheless, I doubt whether the work was worth