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.
Paper on the Agency of Bees in the Fertilisation of Papilionaceous Flowers.

1858.

March 9th:
"Finished Instinct chapter."

June 18th:
Received Mr. Wallace's sketch of his evolutionary theory.

July 1st:
Joint paper of Darwin and Wallace read at the Linnean Society.

July 20th to July 27th:
"Began Abstract of Species book," i.e., the "Origin of Species," at
Sandown, I.W.
Paper on Bees and Fertilisation of Flowers.