No summary available.

Wishes to embody in his reports on atmospheric waves details of JH's work in this field. Would like his comments on his suggested wording. Can E. W. Brayley borrow Karl Kreil's book? Nothing from Madras yet.

No summary available.

Sends the proof of the lithograph from the Daguerreotype for JH's comments and additions.

Clarifies the notion and use of type-species and applies it to CD’s problem with Conchoderma.

Examined the nebula of Andromeda the night before last with his three-foot instrument. Comments on his observations and the sketch made by [W. C.?] Bond. Would require several good nights to make a sketch of value.

Asks for account on South America and sales of Coral reefs and Volcanic islands.

Returns H. P. Brougham's (Baron Brougham and Vaux) paper. Does not recall any similar theories, but does not think his own theories are shaken by those of Brougham. Finds that AD has already done extensive work on the calendar.

Thanks HES for solving his problem. Has some difficulty with HES’s type-species. In arranging genera in a natural order it is often impossible to say which species should be considered the type.

Has received his letter of the 20th and is anxious to know if E. W. Brayley can borrow Karl Kreil's book.

Thanks him for cirripede specimens.

Thanks RO for his note on Conchoderma hunteri [see Living Cirripedia 1: 153].

Has been very unwell; has lost four-fifths of his time. Will go to Malvern to try the water-cure for his vomiting, which regular doctors cannot cure.

Has done some pretty homological work with cirripedes.

Sends detailed report on the prospects for a settlement on the coast of Patagonia, pointing out many problems, and recommending instead the Falkland Islands.

Encloses some sketches to show some remarkable changes in solar spots. Would he place the observations before the R.A.S. when finished with them.

Thanks correspondent for lecture tickets, but regrets he will be unable to attend.

Encloses diagram illustrating difference between Chthamalus and Balanus. Specimens sent. Finds no Chthamalus in WT’s collection.

Has read with much interest WT’s book [The natural history of Ireland, vol. 1 (1849)].

Recommends E. S. Dixon’s book [Ornamental and domestic poultry; their history and management (1848)].

Expresses appreciation for being elected an associate of the R.A.S.

CD is obliged to put off his journey to Paris because of ill-health, but this will give CD more time to study the specimens.

Values HM-E’s opinion on CD’s barnacle work more than any man’s in Europe.

Finds that some of the pages from the paper JH recently sent him are missing. Please send if he still has them. H. P. Brougham (Baron Brougham and Vaux) does not mean to attack the undulating theory. Regarding solar spots and the surface of the moon.

No summary available.