Regarding P. S. Laplace's barometric measurements. Michael Faraday.
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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.
Regarding P. S. Laplace's barometric measurements. Michael Faraday.
Note accompanying forwarding of a paper by Otto Struve, and other minor matters.
Regarding errors in Francis Baily's tables.
Regarding orbits of comets. Lunar elements JH requires are given in P. A. Hansen's tables.
Regarding a suitable engraving of William Herschel to be added to William Walker's engraving of a meeting at the Royal Institution.
Hopes that reports he has heard of his health are unfounded. The wing of the infirmary has been completed.
Is grateful for the copies of his essays, which he treasures. Hopes his anxiety for his son in India will be groundless.
Thanks for the gift of the book. Regarding some financial affairs of JH.
Thanks for his favorable comments on her book. Sends proof sheets as part of her forthcoming book on authors.
Thanks for the valuable gift of his Essays Q.E.R. Has just moved into this cottage and would welcome a visit from JH when in the neighborhood.
Has heard that he is now residing at Collingwood and sends two papers for his perusal. Is the sketch correct? Also encloses two specimen pages of his forthcoming catalogue.
Has received the agreement noted on his ticket of 14 Feb.
On gold and other monetary matters.
Has finished his essay and returns to the subject of gold. Cites articles.
J. C. Symons is spreading locally false theories about the rotation of the moon. Would like JH's views on this.
Is grateful for the copy of his Essays. Query about measuring the focal length of a double object glass. Gives results of his recent observations. Hopes accounts of JH's son are good.
Is pleased that JH approves of his drawings of the planets. Hopes to publish some drawings of the other planets in the future. Has moved his observatory but hopes soon to start observations. Unable to comment on Otto Struve's observations.
Has not been able to go to Kew Observatory yet. The photoheliograph has to await John Welsh's return from Scotland. A reflector with a diagonal mirror would be suitable for celestial objects. Has now removed to Cranford.
Thanks for the magic square, which he is now returning. Seems no end to the possibilities of such squares.
JH has got hold of the explanation about central forces. Need not worry about Elizabeth Baily; he will see to that. Do not reject any letters; they may be important in the future. Gives one of his own theorems.