Reports to JH that the patent infringement case had been decided in WT's favor, and tells of one incident in court.
Showing 61–80 of 130 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.
Reports to JH that the patent infringement case had been decided in WT's favor, and tells of one incident in court.
Asks JH about Dr. Balfour's account in Asiatic Researches about lunar effects on humans in India.
Comments on Josef Fraunhofer's work on double stars, on quality and color of light from different sources, refraction of different kinds of light, and solution of a problem in conic sections. Is going to Geneva and Modena soon.
Describes observations made as he travelled and people visited on journey from London to Ancona.
Talks about Josef Fraunhofer's failing health and his making of flint glass.
Is sending on two items directed to JH through WT.
Writes in favour of a London University professorship for Thomas Key. Refers to some optical experiments of Michael Faraday, and extends solution of conic section problem first raised in WT's letter of 1826-2-27.
Describes prismatic spectrum of flame of cyanogen and offers to repeat experiment with Michael Faraday for JH's benefit.
Queries and comments about telescopes and microscopes; some thoughts about a diffraction grating.
Asks JH to clarify what goods are his from a joint order with WT from a German optical firm.
Renders an accounting of expenses for optical goods received from Germany.
Comments on JH's paper on potash in Annales de chimie. Has observed reaction products in microscope. Concerned over delay in publication by David Brewster of his experimental results in optics and light, especially as WT not convinced of legitimacy of rumored results.
Asks about rumor regarding JH going to Cape. Describes some electrical experiments WT saw at Royal Institution and refers to some WT carried out years earlier.
Asks for seeds and roots of native plants of the Cape. Refers to JH's writings on beating of the heart and comments on some optical experiments of Charles Wheatstone and David Brewster.
Has performed some Newton's rings interference experiments. Asks whether such experiments have already been communicated to the R.S.L.
Trying to understand David Brewster's results on absorption of light in gaseous state, and the dark lines in solar spectrum, the cause of which he misunderstands.
About plant seeds sent by JH from the Cape, WT having sent him some Mexican seeds in return. Halley's Comet only clearly seen on two nights.
Writing to welcome JH home from the Cape.
About Cape bulbs and seeds, the new travel by railway from Slough to London, and concern about interest in animal magnetism.
Thanks for more Cape bulbs.