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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.
Sending some curious magnetic observations made at the Cape. Regarding chronometer measurements. Changes of temperature over sea and land compared.
Regarding his own observations of the recent solar eclipse. Is sending G. B. Airy's report on Alexander von Humboldt's letter on magnetic observations.
Sending a packet. Weather and winds have been unsuitable. Will send Thomas Maclear's packet by the next vessel.
Sending him the Calculus of Functions, which he may retain, and also some maps of the stars published by Society for the Diffusion of Useful Knowledge. The R.A.S. is preparing a picture of Francis Baily and has added JH's name to the subscription list. Supposes he has fixed a date for his return. Regarding 'Warren's jet blacking.'
JH's reaction to Madras Results Volume III pleases TT. Discusses his observing methods in the volume.
Was necessary to reduce the whole of the sixth months' observations. More scanty than he desired but much of his time was taken up observing the comet stars. Is now busy with the comet stars. Does not send the precession as JH has them in his list.
JH has been nominated a member of the newly formed commission to inquire into the suitability of Table Bay as a port.
Observations of 'Comet stars.' Sends original 'Transit book.' Take care of it.
Enclosing some letters of introduction for Rio. Advises him to be there in the winter. Makes a duplicate set of his observations in case the ship sinks.
Is sending Captain W. F. Owen's Quarterly Meteorological statement.
JH letter on Gamma Virginis read at R.A.S. meeting. Niccolo Cacciatore appointed to new position at Palermo Observatory, where he plans to sell the Almanack. Many R.A.S. members experimenting with telescopic lenses.
News of family and friends.