Sends the projection of Monday's readings and one of those from the lever of contact for comparison; comments on this.
Showing 41–60 of 278 items
Sends the projection of Monday's readings and one of those from the lever of contact for comparison; comments on this.
No summary available.
Describes the tests and adjustments JH has recommended to Thomas Maclear to try to remove anomalies from the functioning of the transit circle at the Royal Observatory, Cape of Good Hope; also comments on the beauty of some southern nebulae.
Has replied to Richard Sheepshanks in the Memoirs of the Astronomical Society. Is surprised how near he got to the general figure described by the Circle Centre. Comments on calculations he intends to carry out. Cannot say decidedly that Zeta Octantes is double; it is doubtful seen through the 8-ft. transit.
No summary available.
MH discusses her determination to educate the Herschel children herself.
JH describes his sweeps of Scorpio. Writes that the Milky Way is 'extremely curious and interesting.' Has collected a large catalog of southern nebulae, many never before detected. JH's search for Halley's Comet has been unsuccessful thus far.
More on the mural circle [see JH's 1835-2-7].
Sends CD large beetles from Chiloé.
Describes an earthquake at Caucague.
Gives exact location and measurements of two blocks of granite; has seen and heard of others; will report if he surveys the Potrero on Chiloé.
No summary available.
Reports erecting his telescopes at the Cape and on his observations, especially of double stars, during his first year there.
Describes JH's location at the Cape and his observational sweeps, lists nebulae and double stars, as well as comet and eclipse observations. [Letter finished on 1835-3-5.]
Would like a note of JH's speech to the Supporters of Infant Schools, last week. Comments on the educational facilities at the Cape.
No summary available.
Sends some historical data to illustrate the elevation of the coast at Valparaiso in recent times.
Even though JH has not written, AQ has received news from JH's compatriots. Asks about JH's health. Has not really used equatorial. Continues work on terrestrial magnetism and includes observations. Asks if JH has received last part of translation of JH's work on optics.
Found two planetary nebulae not listed in any catalog; hopes to show them to JH tonight.
[Otto] Rosenberger has calculated perturbations of Halley's Comet by the inner planets. [Wilhelm] Beer and [J. H.] Mädler have a map of the moon and have located two moving spots on Jupiter. F. W. Bessel's assistant has reduced James Bradley's observation to constants of aberration and nutation.
Congratulates WDF on his marriage,
reminisces about Cambridge and early entomology. Now neglects entomology for geology.
Describes Concepción after earthquake.
Hopes to cross Cordilleras before they leave South America in September.
Apologizes for his erroneous reduction. Thanks TM for his list of 'Zenith points.'