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").
December 16th: Finished Chapter III.

Paper read to Linnean Society, On Sea-water and the Germination of Seeds.
1857.
September 29th: Finished Chapters VII.

and VIII.
September 30th to December 29th: Working on Hybridism.