Showing 81–100 of 626 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.
The Royal Observatory wants to make magnetic observations at Greenwich, and it appears will need to make some building alterations. Estimates are required immediately by the Admiralty/Treasury, and GA seeks JH's assistance.
Thanks JH for his help [see JH's 1840-8-14], and tells JH about a visit to Greenwich by Charles Wheatstone.
Regarding equipment at Royal Observatory. Comparison of planets.
Asks JH for comments on GA's proposals for the Standards Commission [see JH's 1840-7-29]; GA comments on some time spent recently in Glasgow and surrounding regions.
Further observations on David Brewster's experiments. On heliometers. Observations on suggestions for Standards.
On the possibility of obtaining a heliometer from Munich.
Sending two copies of the 'Extracts relating to Standards.' Remarks on these extracts. Requests JH to fix a date for a meeting to discuss the report.
A notice of meeting of the Standards Commission.
A notice of meeting of the Standards Commission.
A note to accompany a draft of the report of the Standards Commission.
Sends JH a copy of draft report [see JH's 1841-1-20], and indicates procedure for coming meeting.
A notice of meeting of the Standards Commission.
Asks JH to put in writing proposals JH had made at a Standards Commission meeting, especially those relating to nomenclature [see GA's 1841-2-8].
Sending draft of report and appendix. Specimen of a gauging scale.
A note to accompany additions, comments, and emendations relating to the report of the Standards Commission.
Seeks clarification from JH about a number of matters in the draft report of the Standards Commission [see JH's 1841-5-12 or earlier].
A summons to a meeting of the Standards Commission, together with some proposals for amending the report.
A note to accompany a number of papers on the 'toleration of inaccuracy,' a question of concern to JH in relation to the setting up of standards.
Informing JH of a meeting of the Commission on Standards at Somerset House on 28 May 1841.
Regarding JH's examination of the observations of equinoxes and solstices; GA assures him that these occurrences are observed by Cambridge and Greenwich, though JH does not mention it. Hopes he has received the report of the last 'Standards' meeting.