Showing 21–40 of 125 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.
As many Russian observatories are now involved in magnetic observations, JH thinks the British observations should continue [see GA's 1842-1-22].
JH's reasons for requesting three-year extension of magnetic and meteorological survey from British government and H.E.I.C. Preliminary results from global stations.
Clarifies role and methods of R.S.L. Council and scientific committees, suggesting that members of Physical Committee need to be better informed about its activities.
Agrees with suggestions made by ES concerning the publication of meteorological observations.
Declines to review WC's recent work, and then JH justifies his position for the rest of the letter.
Asks about partially white leaves and about droplets of water forming at the tops of leaves. Has been studying the effects of spectral rays on vegetable colorings.
Congratulates him on his discovery of the parallax of Alpha Centauri. Comments on this and makes suggestions for further examination.
Is confident that by summer his sweeps will all be reduced and arranged in three catalogs for JH's Cape Results.
On RM's stepping down as president of Geological Society. Where exactly abroad will RM pursue enquiries?
Has been ill for two months. Will be visited by Dr. Andrew Smith shortly. Hopes TF can come to Collingwood to meet Smith.
Discusses how exceptional observations of meteorological and magnetical phenomena should be recorded and what significance should be attached to them. Cannot attend next meeting of committee.
Thanks GA for exercising GA's usual discretion in the matter of the funding of Charles Babbage's calculating machine [see GA's 1842-9-26].
Proposes to come to London to visit him. Has just received the proofs of Robert Maine's paper on parallax.
Remarks that he is 50 years old, and that he and CH have 'seen something of that odd and most changeable compound called Human Nature.'
Arranging a visit for GA to Collingwood.
Believes that the operative rays in JH's thermographic process are neither 'calorific' nor 'thermal'.
Final arrangements for GA's visit to JH [see GA's 1842-3-15].
Responds to RM's request for an analysis of the cause of the difference in climate between Orenburg and Catherineburg in Russia. Agrees that Geological Society can print JH's Alpine memoir.
Comments on WL's finding a sixth star in the trapezium of Orion [see WL's 1842-3-10]; lists other catalogues that identify that star.
Appreciates receiving the curious fossil, even though JH knows little of such matters.