Is grateful for details of his method of calculating the orbits of double stars. Comments on some of his observations.
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The Sir John Herschel Collection
The preparation of the print Calendar of the Correspondence of Sir John Herschel (Michael J. Crowe ed., David R. Dyck and James J. Kevin assoc. eds, Cambridge, England: Cambridge Univ. Press, 1998, viii + 828 pp) which was funded by the National Science Foundation, took ten years. It was accomplished by a team of seventeen professors, visiting scholars, graduate students, advanced undergraduates, and staff working at the University of Notre Dame.
The first online version of Calendar was created in 2009 by Dr Marvin Bolt and Steven Lucy, working at the Webster Institute of the Adler Planetarium, and it is that data that has now been reformatted for incorporation into Ɛpsilon.
Further information about Herschel, his correspondence, and the editorial method is available online here: http://historydb.adlerplanetarium.org/herschel/?p=intro
No texts of Herschel’s letters are currently available through Ɛpsilon.
Is grateful for details of his method of calculating the orbits of double stars. Comments on some of his observations.
Will apply JH's principle at the first opportunity. Has made some successful observations of the star Epsilon Arietes. Intends observing Castor on every fine evening.
Provides JH with the latest Royal Observatory values for Gamma Virginis [see JH's 1845-9-30], and advises JH to change his method of measuring double stars.
Still trying to solve the problem of jogging Robert Peel's memory [see JH's 1845-10-8].
Thanks JH for his report on William Simms's object glass trials [see GA's 1845-9-29], together with some other astronomical matters, including reference to a letter from F. W. Bessel.
A note to accompany the return of a letter to JH.
Has received a satisfactory response from the Admiralty [see JH's 1845-9-30].
Asks JH to write to George Merz for an object glass for a telescope for the Cape Observatory.
Sends new edition of James Grahame's History of the United States. Pleased to have been in correspondence with JH. Describes events at Harvard Observatory.
Thanks Herschels for allowing his daughter to visit. [William] Penn died suddenly. Will mention JH's sentiments to the family.
Discusses magnetic experimentation with regard to naval officers. [A. T.] Kupffer's report is based on proceedings at Cambridge. Discusses scientific conference and foreign governments.
Will neither affirm nor deny that he is Foreign Secretary of R.S.L. Discusses importance of Foreign Secretary.
Wants JH to write the communication to Sir Robert Peel regarding the science conference. Foreign members are particularly anxious that JH do this.
Received JH's note saying Lord Northampton already wrote to Sir Robert Peel. Wants to explain how R.S.L. was left without a foreign secretary.
Does not think JH should write Sir Robert Peel pending his reply to Lord Northampton. Preparing [John] Lefroy's Canadian Survey for publication.
Sends communication on meteorology in Bombay for comments. [A. T.] Kupffer's communication makes ES think large scale magnetical surveys are being planned. Discusses possibilities for such experiments in Russia.
Sent Lord Northampton a statement describing the manner in which foreign communications have taken place. Returning to Woolwich. [Henry] Goulburn may see him there.
Saw [Henry] Goulburn, who will ask Lord Aberdeen to notify foreign governments that the British government will continue the magnetic observatories. Hopes observatories will continue in those countries too.
Deprived of news from JH. Works on physical phenomena of globe. Calls attention to [J. C. A.] Peltier's work on electricity of air of barometer. Asks JH to please write soon.
Sends Cape roots and bulbs. Reports that plans for the Cape Botanical Garden progress slowly. Road improvement underway. Minor outbreak of Boer activity dispersed.