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Sends some examples of Gentiana that he thinks may shed light on the origin of double flowers. Since specimens grew in sterile soil their double flowering cannot be attributed to excess food. CD advances the hypothesis that some change in natural conditions causes sterility, which then causes compensatory development of petals, the organs closest in morphology to those whose functions have been checked.
Declines invitation to ride because he is "so very subject to headache".
CD sends off his notes [corrections and additions to his Journal of researches] which he hopes ED will introduce [in German translation].
Is happy to hear that JH approves of the suggestion to send his eldest son to seek his fortune in the East. Will request that the appointment be conferred on William Herschel [JH's son]. Is spending some days with the Bryants.
Discusses state of science in France. Magnetic instruments were ordered for Algiers, but ES is uncertain whether they left Paris. Will send portion of magnetic report and letter from [A. D.] Bache among other things.
Has received official communication from the Treasury that the government will provide financial assistance to print the catalogues of stars. Both these catalogues and the one to be printed by the B.A.A.S. await their decision on star nomenclature.
Has received the parcel. Papers regarding the comet have been sent to the R.A.S. John Hartnup is to copy out the catalogue of stars. Will have to wait awhile for the maps of F. W. A. Argelander and Mr. Schwinck. Is preparing for the printing of the catalogues.
Believes 'Mr. Maclean,' who reported from Africa observing increasing brightness of Eta Argus is not [Thomas] Maclear, but [George Maclean], the 'Governor of Cape Coast Castle [Ghana] & the husband of the unfortunate [Letitia Elizabeth Landon], whose singular death caused such a sensation some time ago.'
Humbly requests that JH accept his 'celestial map' and his infinite esteem.
Regarding a telescope for Thomas Maclear.
Provides JH with information and advice about large lenses, which JH is considering for a Cape of Good Hope Observatory equatorial telescope.
Congratulates JH on his election as Trustee of the British Museum.
Calls CD’s attention to an article about William Herbert’s hybrid Narcissus.
Amuses himself in his spare time with astronomy. Would like advice on the composition of the metal for the speculum. Hears that Miss Caroline Herschel is in good health.
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