Thanks for alerting JH to extraordinary hoax in New York Journal of Commerce (2 Sept. 1835). Invites [Caldwell] to visit JH at Feldhausen.
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Thanks for alerting JH to extraordinary hoax in New York Journal of Commerce (2 Sept. 1835). Invites [Caldwell] to visit JH at Feldhausen.
Having read John Burrow's book, JH proposes procedure for analyzing masses of data from [African] Expedition. Will volunteer to interpolate chronometer errors if TM will undertake computations.
JH's theory of meteors. Will convey to England RP's recent observations of eclipses. Received New York paper claiming discoveries in moon by JH. Invites American observers to join international system for simultaneous meteorological observations.
Advice on how best to survive business world of Canton. [Letter continues from Hout Bay:] Family finances. [Letter continues 9 May at Feldhausen:] Asks help in developing JH's 'Phonetic Alphabet' of Chinese language. Considers writing book for Chinese. Comments on Chinese literature and culture. JH has changed shipping agents in Cape Town. Poem by JH.
Speculates on extinction of species by natural (not miraculous) causes intermediate to Creator. JH's theory of shifting crust over Earth's surface and its subsequent transfer of pressure. Seeks geological primum mobile for volcanoes based on continual deposition and melting of strata. 'All records of former worlds must ultimately perish.'
Thanks CL for the gift of a new edition of CL's Principles of Geology. JH comments on a number of issues, in a very long letter, including the replacement of extinct species by other species, CL's solution of the problem of the variation of climate, and the evolution of language. JH speculates at length on the isothermal activity under the earth's crust that may result in volcanoes or the formation of new land masses, and describes a considerable number of geological examples that JH sees as supporting CL's ideas.
Is very thankful for the meteorological observations sent to JH, and makes some suggestions for additional and continued observations.
JH and his family went on an excursion and collected plants. JH is now sending some that survived well and asking WH to identify them.
Is sending WH a plant sent earlier, but this one has a bulb attached.
Discusses methods of magnetic observation, JH's actinometric readings in the Cape, and the need for more physical observatories.
Replies to WH's letter on 'Scotodynamics.' Cannot follow WH's analysis of velocities of vibrations and disturbances, but finds it symbolically beautiful and powerful. Notes that diploma [?] arrived and was sent to Hanover. Thanks WH on behalf of Caroline Herschel, who sent a letter acknowledging the honor bestowed on her by Royal Irish Academy.
Finishing his copy of the panorama taken from the summit of Paarl rock. Needs TM's star reductions as soon as possible.
Thanks TM for the right ascension reductions. Saw the comet [Halley's] last night, but it was dimmer than before.
Asks for TM's barometer and thermometer readings for 20-28 September.
Uncertain when they are traveling to Paarl.
Invites TM to come see Halley's Comet in JH's large reflector. JH reports his observations of the comet.
Calculates the location of the comet [Halley's].
Comments concerning Francis Baily's book on John Flamsteed.
Calculates the location of [Halley's] comet.
Star within 20 seconds of the nucleus of the comet [Halley's].