Showing 1–20 of 41 items
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.
Sees that JH mentions 'the longitude of perihelion on the ecliptic' as one of the elements he would like to have in the case of the small planets. Would like his advice.
Comments on JH's advice regarding the 'longitude of perihelion in the ecliptic.'
Explaining some of the signs in the enclosed table. Has sent the Nautical Almanac for 1867.
Sending the revision of the first half sheet for the 1867 supplement containing the latest elements of the small planets.
Thanks for his paper on amalgams. Regarding the amalgam of iron, he pointed it out many years ago in his Bakerian lecture. Would be interesting to experiment further with iron in solution of mercury.
Much obliged for his letters regarding the amalgam of iron. Cannot account for his ignorance of JH's Bakerian lecture.
Sends by book post two photographs of the original drawings of the sun's observations, also a photograph of a model of the S.E. portion of the moon; comments on them. Will be pleased to accept JH's invitation to visit Collingwood.
Fine weather is getting rare at this time of year and would therefore like to induce the Herschels to visit him while it lasts.
Regrets that JH's engagements prevent them visiting Penshurst. JN too is unable to manage the dates quoted. Hopes his own Herschelian helioscope will be in action by the time the Herschels visit Penshurst.
Sends a portion of JH's lecture for the Leeds Astronomical Society, which has just been received from the printer. PO's wife's health is improving and JH's grandchildren are flourishing.
Received four issues of GQ's Moniteur Scientifique. Saw mention in No. 163 of JH's proposed modification to British system of weights and measures. JH's paper on this topic is now before Astronomical Society of Leeds.
Read of JH's intention to prepare general catalogue of nebulae. Encloses list of unpublished nebulae found at Harvard over past 15 years. Finds similarity in form but difference in theory between JH's equations for curve of object glasses ['On Aberrations of Compound Lenses and Object Glasses' (1821)] and those of K. A. Steinheil and C. F. Gauss. Asks about Josef Fraunhofer's theory.
Comments on the ease of calculation in geodesy in JH's version of the English system of units, and asks GA for some clarifications as JH prepares the seventh edition of his Outlines Astr.
R.S.L. Club locale changed to St. James's Hotel. Wants JH's advice on two papers ES is writing on results from Kew Observatory.
Accepts invitation to dine with ES. Working on sixth edition of Outlines Astr. Has sent argument against converting to metric system to Leeds.
JH to read his paper on nebulae Thursday, 19 Nov. Dinner will be at St. James's Hotel.
Received documents from JH just before leaving for Berlin. Discussed periodic stars in Berlin. Stayed in Berlin longer than expected, but was received well by old friends.
Informs JH that his photographs of the moon's surface and diagrams of the sun's envelope were sent to the engraver.
Thanks JH upon receiving the essay for the Leeds Astronomical Society lecture series ['The Yard, the Pendulum, and the Metre, Considered in Reference to the Choice of a Standard of Length'].
Announces JH's essay, 'The Yard, the Pendulum, and the Metre' will be read to the Leeds Astronomical Society on 10 Oct. 1863.