James Wilson reports case of salmon hybrids.

Herrings inhabit freshwater lake in Scotland during winter.

JDH will edit juror reports for the Great Exhibition.

Thanks CSB for cirripede larvae.

Has been unwell.

Cannot see transverse articulation referred to and does not believe in it.

Sends species synonyms.

Discussion of Chthamalinae.

Suggests using asphalt to seal specimen containers.

Comments on mouth of larva.

Discusses domestic affairs and gives some advice on manners.

Flora of New Zealand.

Reconsidering variability of insular species.

Becoming convinced of the probability that the southern flora is a fragmentary one – all that remains of a great southern continent.

Sends cirripede specimens for Ipswich Museum.

Asks how much a village fireworks display would cost.

Comments on the need in education for good habits of expression and accurate observation instead of making "wretched Latin verses".

The Binder "by some wonderful Blunder" has bound the enclosed in all of CD’s copies [of Living Cirripedia, vol. 1]. He requests that it be pulled out. It may belong to W. A. Leighton’s volume [Lichens (1851)].

Is glad WED has made a good beginning [at Rugby?].

Questions on variation in nature: taxa varying in one region but not another. Variation between vs within species. Rarity of variation in important organs within a species. G. R. Waterhouse’s views on variation in highly developed organs, which CD relates to variation in rudimentary organs.

Asks for cases of obligate self-fertilising plants.

[CD annotation proposes using the Steudel Nomenclator botanicus (1821–4) to determine if variable species occur in genera with many species.]

Thanks for his letter; hopes he is managing all right [at Rugby?].

Informs JW of his intention to sell his N. W. Railway shares.

Recommends GJ for Government pension.

Sends his written consent regarding custody of the deeds of the Owen mortgage. Other financial matters.

Discusses WED’s affairs and events at Down.

Writes of the benefits of reading.

CD has been reassured about his "speculation" in Mr Warren’s company. Thanks JSH for his advice and trouble.

Would like to meet JSH in London.

Offers to send Ascidia specimens of Beagle voyage. Describes some of them.

Hopes THH will review his book [Living Cirripedia, vol. 1] which has been published for a year with no notice taken of it except briefly by Dana.

Discusses Limulus-like larva. "I have become a man of one idea.– cirripedes morning & night."

Discusses the development and morphology of Verruca.

Would be proud to receive memoir ["Les crustacés fossiles du Limbourg" (1854)].

Discusses the [CD/Emma] marriage trust.

Writes concerning marriage trust.

Acknowledges the receipt of some securities.