Was very happy to receive JH's remarks on his little logical work. Comments on this work. Is not satisfied with the logic of J. S. Mill. Has not seen [James] Haig's work yet, but hopes to read it on return from the Continent.
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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.
Was very happy to receive JH's remarks on his little logical work. Comments on this work. Is not satisfied with the logic of J. S. Mill. Has not seen [James] Haig's work yet, but hopes to read it on return from the Continent.
Thanks JH for his letter and package of his writings.
A note to accompany a paper by FP on the prediction of occultations and eclipses.
Glad for Mary's recovery. Congratulations on John's promotion to captain. Suggests method to study solar prominences without spectroscope. [Letter continues 15 June:] Alexander Herschel reports that G. B. Airy tried this method unsuccessfully long ago, but JH is sure it will work.
Received TW's book and approves simplicity and economy of its method of keeping time by using small fixed telescope to reduce star observations. Disapproves of using 'Dominical Letters.' Suggests using Julian dates.
Note to accompany an extract from JH's son John's letter, reporting on his observations of solar prominences.
Extended comments on John Herschel's [JH's son] observations of the spectrum of the solar corona.
Attached comments [not included] convey JH's views on MS's new manuscript [On Molecular and Microscopical Science, 1869]. Expresses reservations about MS's endorsement of current ideas of forces and their correlation and conservation.
Reports on paper [R.S.P.T., 159,. 575-] by [Thomas] Andrews on continuity of gaseous and liquid states of matter, believing it fit for publication.
About AD's health and the cold summer.
Concerned about AD's health. Offers theory of the constitution of matter.
Health is not good. Is not up to the theory of atoms. Have had broiling heat for many weeks.
Please review TW's enclosed new book on civil time-keeping: How to Keep the Clock Right. [JH annotation: Answered 7 July.]
Cites various celestial appearances as a basis for concluding that the Milky Way takes the form, not of a disk or ring, but of a series of convolutions. Urges that the nebulae form part of the Milky Way rather than being separate universes, as many had suggested. Asks JH to critique these ideas.