Mentions letter from William Whewell sending JF JH's interesting but puzzling meteorological results. Will communicate them to a Dr. [John?] Davy at Malta. Has been busy preparing lectures. Made a short tour in England last summer. G. B. Airy has been awarded the Lalande Medal.

Has just come from Scotland on his way to the continent for two or three months. Pleased to hear JH's work is making good progress. Does he know that David Brewster made observations for two days of the year? Has sent him his paper on polarization. Has been occupied by the preparation of his paper on optics. Hopes to reduce his observations made on the continent in 1832. Would like T. C. Robinson, the instrument maker, to see JH's instructions.

Discusses reduction of barometric observations. Praises the Cape's climate.

Unable to assist JH's friend Major [Abraham] Cloete as JF was away from home. Comments on results of JH's table and JF's own papers and scientific occupations. B.A.A.S. would welcome JH's ideas for meteorological work. S. D. Poisson has published a new work on heat, in which he attacks J. B. Fourier.

Encloses the second part of his paper on heat. Has procured some meteorological readings from Malta. Trusts everything is proceeding well at the Cape. Met G. B. Airy recently at Greenwich, where C. F. Gauss's apparatus is now installed. Mr. Gaubert is dead, also A. M. Ampère and G. C. F. M. R. De Prony.

Pleased to hear JH's work is progressing. Disappointed with Dr. [John] Davy's meteorological observations at Malta. Comments on other scientific news, including recent eclipse, [Andrew] Crosse's controversial artificial crystals at Bristol B.A.A.S. meeting, JF's 1832 observations in Switzerland, and William Whewell's and William Buckland's books.

Discusses methods of magnetic observation, JH's actinometric readings in the Cape, and the need for more physical observatories.

Encloses observations made by some of his pupils who have now formed a physico-mathematical society.

Sending a letter via Capt. Basil Hall. Is surprised JH did not mention the starry showers of 12 Nov. in his last letter, D. F. J. Arago is investigating them. J. B. Biot has published an extension of [Denison?] Olmsted's theory. Humphrey Lloyd has produced an interesting book on the undulatory theory. What measure does JH employ for the force of the wind? Has got William Whewell's anemometer. Influenza prevalent. William Farish has been succeeded by Robert Willis.

Thanks JF for papers and requests copies of those JH has borrowed; comments on JH's observations on solar heat, light, and lines in spectra.

Discusses prospects for meteorological committee of B.A.A.S., on which they both will serve. Lacks time for it. Does not need hourly observations made by Committee of Physico-Mathematical Society of Edinburgh.

Writes 'in haste' to thank JF for a pair of papers. Comments on Louis Daguerre's pictures in Paris.

Regrets that JH had to write another letter regarding the two papers he forwarded. Missed him when in London. Saw L. J. M. Daguerre's specimen and also those of J. N. Niepce, the latter undoubtedly the originator. Has made an excursion to the volcanic region of the South of France.

Outlines theory behind and method for preparing thermographic paper, which allows observers to determine 'what share each ray of the spectrum bears in producing the observed total effects.'

Would like to know the degree of sensibility to heat of JH's paper. The paper of W. H. F. Talbot is useless for his purpose as only violet heat affects it. Did JH use a flint glass prism for his spectrum experiments? Has he ever used photography to show the impression of polarization and diffraction?

On the preparation of paper to exhibit a thermal spectrum.

No summary available.

Explains results obtained by R.S.L. subcommittee considering state of meteorological journal published in R.S.P.T. Wonders about feasibility of establishing 'simple but accurate meteorological register' under public authority.

R.S.L. will deviate from its intellectual purpose whenever it meddles in practical observations. Proper role for R.S.L. is to suggest goals and methods and to reward discoveries. Recommends discontinuing meteorological observations at Somerset House; other stations now provide better data. If R.S.L. insists on establishing a meteorological register, JH suggests one like that of J. F. Daniell.

Describes difficulties in attempting to produce good meteorological register and establish national meteorological observatory.