Still searching for journal of WP's observations. Notes on micrometer used in measuring nebulae positions. WP's assistants are not qualified to make new measurements.
Showing 21–35 of 35 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.
Still searching for journal of WP's observations. Notes on micrometer used in measuring nebulae positions. WP's assistants are not qualified to make new measurements.
Encloses letter from G. J. Stoney, who had journal of WP's nebulae observations. Hopes WP's observations will be helpful for JH's proposed catalogue of nebulae.
Preparing classified index of observatory journals, but information will not be accurate enough to help JH. G. J. Stoney is too busy to help remeasure nebulae positions.
Declines WP's invitation to attend Cork B.A.A.S. meeting and afterwards to visit WP and to see his reflecting telescopes. Informs WP that [C. A. von] Steinheil had written JH about a process of 'Electro-gilding' mirrors for telescopes.
Thanks WP for sending drawings and descriptions of various nebulae observed with WP's giant reflecting telescope. Comments on various nebulae. Expresses the idea that some planetary nebulae are 'hollow elliptical or spherical shells with or without a central Star.'
Declines WP's request that JH write an obituary notice of François Arago. Agrees R.S.L. should publish such. Suggests [Charles] Wheatstone as author.
Arrangements JH has made for admission [to Mint?] for WP and some of WP's friends.
Would WP accept the presidency of the Photographic Society? Describes that society.
Compares in regard to the awarding of the R.S.L.'s Copley medal the contributions of three scientists: Friedrich Wöhler, Wilhelm Weber, and [illegible].
Sends JH's 'On Atoms' to WP.
Thanks WP for WP's paper on nebulae and on WP's giant reflecting telescope. Comments on and/or raises questions about various nebulae.
Discusses plans for a memorial for Thomas Maclear. Requests change in manner in which WP records positions of nebulae observed at WP's observatory.
Has received letter from Lord Palmerston [Henry John Temple] approving JH's request for a memorial for Thomas Maclear.
Thanks WP for having sent chart of the Orion nebula. Comments on its quality.
Discusses W. H. Fox Talbot's patent application, commenting that JH wishes all patents were abolished. Regrets that duties at the Mint and for the Cambridge University Commission have hindered JH's ability to carry out JH's responsibilities to WP.