Showing 41–60 of 332 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.
Sent JH's letter concerning actinometers to all observatories. [Johann] Lamont must be informed of recent work. ES comparing fluctuations of direction and force at Toronto and Van Diemen's Land. Mentions [G. B.] Airy and air currents.
Regarding the deeds for CB's brother-in-law. Is sorry that CB could not see the blasting of the cliffs at Dover.
Note of thanks for paper of JH's; replies with a printing of a talk by FB about William Herschel.
Clarification of priority to the prismatic analysis of the Daguerreotype photograph; comments on the location of a limiting diaphragm in a camera obscura.
Extract from observations of 70 Ophiuchi by F. W. Bessel. Results agree with WS's measurements by different method and increase WS's confidence. Hopes for more information on Gamma Virginis before finalizing WS's manuscript.
Reports on GM's health and immediate travel plans.
Thanks for the 'exquisite specimen of Daguerreotype.' Speculates on the possibility of making Daguerreotype portraits small enough to be set in rings or in shirt pins.
A note accompanying some papers on the geodesic work carried out in Germany.
Thanks for his paper on the Earth. Wishes his own Cape work was finished and of the same standard as FB's work. Regarding support for Dr. W. B. O'Shaughnessy when his election to the R.S.L. is being considered.
Regarding his own support for W. B. O'Shaughnessy. Star reform in the Southern hemisphere.
Will start work on the Southern Constellations without delay. Thanks for his remarks on W. B. O'Shaughnessy.
Thanks JH for favorable comments on BS's biography of [Charles?] Mason. Has been given part of an unusual meteorite fallen in the Cape. If JH has a piece of it, hopes to obtain JH's opinion.
Describes experiments in the electrochemical decomposition of metallic salts.
Announces election of Marquis of Breadalbane [John Campbell] as lord rector of Marischal College for coming year. Thanks for JH's advice to college senate.
Describes his view of the Great Comet of 1843.
Has sent note to the Times about the comet.
Further regarding the method to be adopted for the printing of the star catalogue.
Is grateful for his note and the book; has been ill, which accounts for the delay in his acknowledgement. The verses appear to give a good idea of the original.
Wishes CH a happy 93rd birthday. Occupied with remodelling the Southern Constellations, which 'are all in confusion;' admits that not everyone will be satisfied with his constellation reforms.
Sends JH observations of Comet of 1843; disappointed with Cape Observatory's records of the comet. Oversees Observatory in absence of Thomas Maclear, who is at Zwartland for meridian survey. Lists and describes instruments in use at Cape Observatory. Discusses sources of error.