Published Monographs of Recent and Fossil Lepadidae.

1852.

Working at Cirripedes.

1853.

November 30th:
"Royal Medal given to me."

1854.

Published Monographs on Recent and on Fossil Balanidae and Verrucidae.

September 9th:
Finished packing up all my Cirripedes.
"Began sorting notes for Species Theory."

1855.

March-April:
Experiments on the effect of salt water on seeds.
Papers on Icebergs and on Vitality of Seeds.

1856.

May 14th:
"Began, by Lyell's advice, writing Species Sketch" (described in "Life and
Letters" as the "Unfinished Book").