Thanks for JG's Correlation of Physical Forces; JH is still uncertain about the nature of heat.
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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.
Thanks for JG's Correlation of Physical Forces; JH is still uncertain about the nature of heat.
Regarding the apparent disappearance of a nebula. Comments on this.
Cannot see how there can be two opinions regarding JH's catalogue of nebulae. Suitable work for the R.A.S. to publish. Further regarding the lost nebula in Taurus.
Has been considering how to incorporate JH's suggestions regarding the insertion of the Julian dates in the Nautical Almanac. Would like his views. Quotes extracts from a letter of U. J. J. Leverrier.
Requesting JH to propose EL as a candidate for the R.S.L. The B.A.A.S. meeting will be in Nottingham in 1863. Has been to Spain to observe the eclipse.
Is grateful to JH for proposing EL as a candidate for the R.S.L. Has been experimenting with ozone; comments on his observations.
Sending an incomplete copy of the fourth edition of his own book [Traité général de photographie] on photography, which he would like to dedicate to JH.
A daughter of Thomas Maclear is to spend several days with JH and his family before returning to the Cape.
[Printed notice] Solicitation by Geological Society of contributions for Charles Nichols, 22-year member who has 'fallen into...difficulty.'
Requests donation to hospital.
Discusses a depression on a heliograph, which he cannot reconcile with [Frederick] Howlett's observations. Conjectures over-exposure in printing may be the culprit.
Invites JH to meeting of Balloon Committee and updates everything in previous letter.
Asks for JH's opinion on balloon ascents, to be presented at next Balloon Committee meeting. Explains enclosed letters and diagrams regarding ascents; mentions that new thermometer suggested by JH is under construction.
Has sent an R.S.L. membership application certificate for GA to sign and send on.
Arranged for Maggie Maclear to be met after her arrival in England and for her trip back to Cape Town.
Is preparing a list of nebulae and their positions; does GA think anyone would print them?
Suggests preparing an estimate of the cost of preparing and printing a nebula catalogue so JH can approach the R.S.L. [see GA's 1862-1-24].
Discusses plans for a hot-air balloon.
Receives report from Crystal Palace concerning balloon test.
Sorry to hear that the almanac did not reach him. Would be glad for any of JH's comments. Has put previous address.