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Asks JH to write a letter of recommendation for a mutual friend, and adds some Cambridge news.
Mr. Murray will bring to DB two papers by JH, one on hyposulfurous acid and one on mathematical analysis, plus requested abstract of JH's and William Herschel's 'last papers' in R.S.P.T.
Will sail tomorrow for Calais. Could not find Mr. Armstrong in Dover.
Arrival in France. Travel companions. JH and Charles Babbage will go to Institute tomorrow to visit J. B. Biot, S. D. Poisson, and other mathematicians.
JH arrived safely yesterday and attended event at home of Sir Joseph Banks. Dr. [Matthew] Baillie asked about Lady Mary Herschel. JH and Charles Babbage, preparing to tour France, leave tomorrow for Dover. Wishes better health for MH and William Herschel.
Regarding his father's portrait. Would recommend waiting until the days become clearer and longer.
Gives equation. Is arranging the visit to Paris.
Would he like to come for a trip down the river to see W. E. Parry's Expedition ships? Query regarding quartz crystals. Date for Pearsonian dinner.
Cannot accompany CB to Deptford because JH busy with James South. Mentions the 'Pearsonian dinner,' 'plagi[h]edral' crystals, and a letter by Wilhelm Olbers.
Note to accompany the sending of some papers; JH is off to Paris.
Acknowledges in JH's father's name FB's notice of the upcoming annular eclipse of 1820. Stresses the importance of observing it.
Will show JH largest specimen of apophyllite [Argentine spar] in kingdom.
Family news and other matters [letter completed 1819-2-23].
Pleased to see Macleay's handwriting "after so long an interval". Concerned to hear of the death of [Olof] Swartz, one of his "most constant correspondents", with death of [Carlo Antonio] Bellardi leaves 4 FMLS vacancies; nominates [Augustin] de Candolle and [José Antonio] Pavon, in spite of the latter's financial situation, Lamarck, and [Franz Karl] Mertens. Considered [Kurt] Sprengel. [Georg] Meyer dedicated his "pompous" "Flora Essequeboensis" to the Linnean Society and is ambitious of joining, but must not be chosen for FMLS yet.
Thanks for brace of pheasants. Pleased to hear Smith's complaint has ceased but recommends continued temperance in his diet and to take 30 drops of laudanum a day for another year. No cause for concern in pulsation of artery in retina.
Thanks for the foregoing.
Offers Smith loan of correspondence of [Emanuel Mendez] da Costa [(1717-1791), naturalist].
Options for publication. Shall obtain Miss Currer's correspondence collection for Smith's consultation.