About the state of GP's health, and plans for a vacation
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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.
About the state of GP's health, and plans for a vacation
Sends information concerning India in response to letter of JH's son. [Sir Charles Edward] Trevelyan has printed such information occasionally. Many do not see the importance of India.
Returns polar maps. Advises on methods of map projection, favoring polar projection. Working on new maps.
Discusses his itinerary for the British Isles. Gives address where he may be reached. Wishes to visit JH at Collingwood. Congratulates JH on his improved health.
Thanks JF for his dissertation on the Progress of Mathematical and Physical Science. Discusses health of JF and JH. Suggests that some actinometric measurements are not as seriously flawed as at first thought [see JH's 1847-3-1].
Interprets [John] Dalton's theory of the nonelasticity of gas particles, expressing its limitations, particularly in regard to a Mr. Paton's paper.
Agrees to support C. P. Smyth for membership in R.S.L. Objects to C. P. Smyth's statement regarding his discoveries observing at high altitudes. Stresses importance of variable star work.
Asks JH to recommend C. P. Smyth for R.S.L. fellowship. Will avoid R.S.L. meetings due to declining health. Considers a second edition of Cycle of Celestial Objects.
Sends a copy of his Astronomical Investigations. Claims there is an 'inequality in the motions of Mars and the Earth.'
J. C. Symons is spreading locally false theories about the rotation of the moon. Would like JH's views on this.
Regrets that he thinks the faith of the public in astronomy should be shaken by the errors of J. C. Symons. Gives the theory of the rotation of the moon.
Thanks for the magic square, which he is now returning. Seems no end to the possibilities of such squares.
Forwarding a copy of a letter written by GD's father in which he quotes from JH's writings. Is grateful for the tribute he paid to his father at the B.A.A.S. meeting.
Discusses an edition of Antoine Lavoisier's works [3 vols., 1862-65] edited by JD. Comments on the edition and on the arrangements for JH receiving it.
All is well. Hope JH hears 'good accounts from India.'