No summary available.
No summary available.
CD’s enjoyment of the beauty of the tropics is worth all the misery of seasickness. His mail gave him great pleasure. For two weeks he will visit a large estate in the country, and on return live at Botofogo for some weeks, collecting and learning to know the tropics.
No summary available.
Must decline invitation to dinner due to poor health.
Wonders how JH's projected volume on Astronomy is progressing. Would also like a short biography of Francis Bacon.
Discusses study of light, JH's theories on the subject, and his own photometer observations. Asks JH for further explanations of his theory.
JG is revising his diary.
No summary available.
Has received the chronometer and will return it to Lister, together with his remarks on apertures. Charles May has found another individual suffering from color blindness. A friend has successfully made a reflecting microscope.
Writes news of Cambridge friends, professors, music, the Reform Bill, and cholera. Expresses belief that CD will take his place with Cuvier and Humboldt.
Wilhelm Struve's observations support JH's findings concerning the rapid revolution of Eta Coronae. In acknowledgement of the discovery that double stars are a 'revolving binary system,' JH changed the inscription on William Herschel's monument.
Reminds JH to send his catalog of double stars.
Passing on the offer of assistance by Frederick Augustus (Duke of Sussex) for JH's projected visit to the Cape of Good Hope.
Responds to RP's concerns about the nature of light and the interpretation of some interference experiments. JH believes that the undulatory theory of light is the best supported by the experiments at this time.
No summary available.
Has received Sir John's letter. Gives details of the necessities for a voyage to the Cape. Conditions at the Cape, housing, food, servants, etc.
Discusses a method of separating iron oxide from the oxides of other metals and a process for the purification of uranium oxide.
Is grateful for the offer of assistance from Frederick Augustus (Duke of Sussex), but would not care to avail himself of public funds as his intended visit is for his own private reasons.
His trip to the interior was full of interest, but exhausting physically. Expects to stay at least a fortnight at Botofogo, because the Beagle returns to Bahia to correct a difference in the longitude measurements. Writes of his companions, of FitzRoy, and of his journal – which he has sent home.
Writes chiefly of family affairs: Erasmus’ visit, further delay in Fanny Owen’s marriage, Sarah [Owen] Williams’ illness, Arthur Owen’s sad departure for India; cholera.