Now plans to come to Kew for an hour’s farewell if his stomach permits.

Congratulations on JDH’s Flora Antarctica [1847].

CD too unwell to see JDH. Encloses Emma’s farewell note.

Seeks excuse from jury duty on grounds of ill health.

Thanks JSH for his address [Address delivered in the Ipswich Museum on 9th March 1848]. Questions a sentence which implies that only the practical use of a scientific discovery makes it worth while. The instinct for truth justifies science without any practical results. Cites his work on cirripedes.

May go to Paris next summer about barnacles.

Unable to appreciate second volume of Alexander von Humboldt’s Cosmos [1848].

Recommends review by Sir John Herschel [Edinburgh Rev. 87 (1848): 170–229].

Recommends book by Mary Somerville [Physical geography (1848)].

Mentions article [on species] by M. E. Chevreul [Ann. Sci. Nat. (Bot.) 3d ser. 6 (1846): 142–214].

Confident of species theory as result of applying it to cirripede sexual systems.

CD’s opinion of E. Blyth. JDH should meet Blyth, inquire about domesticated varieties, study insular flora, solve coal-plant problem.

Congratulates RC on his work on Scottish sea-margins [Ancient sea-margins (1848)].

Discusses Glen Roy; Milne staggered him in favour of the glacier view, but now his opinion has reverted.

Has written to William Buckland, recommending EC for position.

Criticises lecturing system in education and emphasis on classics. Has forgotten all his classical knowledge.

Asks JSH’s help in naming cirripedes, on which he is working. Believes he has made "some very curious points".

Expects a sixth child [Francis] in August.

Encloses note from William Buckland [1190], stating that no appointment of surveyor is to be made. Thinks further recommendation would be unwise, but will write to Sir Henry De la Beche and [Robert?] Hutton if EC wishes.

Will speak to Richard Owen, Henry De la Beche, and Robert Hutton concerning appointment for EC.

Leaving for sea-side on Saturday.

CD makes progress with barnacles. Describes "supplemental" males in detail. In working out metamorphosis, their crustacean homologies followed automatically.

CD opposes appending first describer’s name to specific name.

Writes a detailed account of his treatment at J. M. Gully’s hydropathy establishment at Malvern.

CD’s health and his father’s death have delayed his answer. Describes J. M. Gully’s water-cure.

JDH’s Galapagos papers [Trans. Linn. Soc. Lond. 20 (1851): 163–233] have excellent discussion of geographical distribution, but why no general treatment of affinities?

CD’s views on clay-slate laminae.

Turmoil in Royal Society between naturalists and physicists.

Declines to canvass for Richard King.

Water-cure has benefited health.

Does not recommend that JDH publish extracts of his letters from India in the Athenæum.

CD criticises JDH’s observations on glacial deposits in Himalayas as insufficiently clear and detailed.

CD will live to finish barnacles and make a fool of himself over species.

Describes the Birmingham meeting [1849] of BAAS.

His health is poor. Continues with water-cure with considerable benefit.

CD thinks great dam across Yangma valley is a lateral glacial moraine.

Reports on Birmingham BAAS meeting.

Details of water-cure.

Barnacles becoming tedious; careful description shows slight differences constitute varieties, not species.

Lamination of gneiss.

Thanks JSH for information and suggestions on benefit clubs,

and for a shipment of fossil cirripedes.

J. B. Innes is greatly obliged for JSH’s letter. JSH’s observation of chalk flints strikes CD as "very curious".