Will distribute copies of a JH paper.
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.
Will distribute copies of a JH paper.
Calling his attention to one of his own articles. Concerning Mr. Magers and Roger Boscovitch's views. Concerning Magellanic Clouds.
[John] Davy's letter mentioning JH is published in the current P.M. Regarding JH's and Mr. Magers's psychic views.
Has to forward a copy of the Golden Calendar to him; how shall he send it?
Is sending JH and Lady Herschel a collection of photographs JC has taken. Discusses them, and her philosophy of photography. Thanks JH for being 'her first Teacher.'
Has copied out some extracts from his translation of Homer and is wondering whether to publish the first twelve books. Comments on his views and poetry of Alfred Tennyson (1st Baron Tennyson).
Is grateful for JH's extracts from Homer. Hopes JH will publish before he has finished all the translation. Will write again soon.
Comments about translating Homer and about other translations appearing.
Further details about exhibiting samples of the South African meteorite [see GD's 1864-1-3]. [Letter illegible in parts.]
Thanks for the diary and pocket book. Sees that A. V. Guillemin has published an illustrated Astronomy [Le ciel (Paris, 1864)]. Thinks there is scope for publishing a volume of engravings of astronomical objects. Gives his own idea for the construction of a photometer.
Has received a letter from Angelo Secchi who states that he has seen James Nasmyth's 'willow leaves.' Remainder of letter relates to the JH prism, which he sent him through Cardinal N. P. S. Wiseman.
Sent JH 'Index Chart' of Great Trigonometrical Survey of India. Compares five triangulation methods: longitudinal series, George Everest's, G. B. Airy's, that of JH's son John, and minimum squares. JH's son and bride avoided cyclone that destroyed Calcutta Observatory.
Received Indian survey chart. JH's son John wrote of higher-order ellipsoidal triangles with sides based on geodesical triangles. JH objects that these violate principle of diagonal bracing. Proposes different triangles and names sites in India as apexes. Received G. B. Airy's paper on reduction.
Indian Triangulation chart showed progress to May 1862. Explains why arcs of meridians and parallels were chosen over diagonal braces. G. B. Airy's method of determining errors helped. Will take note and package from Maria [Herschel] to JH's son John.
Sending a weather almanac by a person called Orlando Whistlecroft. Comments on his weather forecasting.
Thanks for the valuable series of measures of double stars. Regarding JH's method of calculating the orbit of a double star, which RE seems to have misunderstood.