Sending a descriptive pamphlet of an optical invention of his own for simple experiments with color.
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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.
Sending a descriptive pamphlet of an optical invention of his own for simple experiments with color.
Outlining his geometrical laws for the Great Pyramid.
Pointing out an error by JH in assigning the authorship of a weather table to Sir William Herschel.
The writer of the enclosed production has given lectures at SN's establishment. Introduces him to JH. Hopes to give a lecture at Hawkhurst. Would be pleased for any of the Herschel family to view the orchid house, now in full bloom.
Miss Newington will have pleasure in seeing Lady Herschel and Miss Power on Monday or Tuesday next. Will send over a copy of the Orchid House tomorrow.
Dissatisfied with [F. W. A.] Angelander's nomenclature of variable stars; seeks JH's approval of NP's nomenclature for the new 'Hartwell Atlas of Variable Stars.'
Agrees with NP's proposed method of designating variable stars. Offers some suggestions from JH's own experience.
Against changing location of Royal Observatory [from Greenwich], but will defer to opinion of [G. B. Airy] Astronomer Royal. Airy is most competent to judge situation. Still ill.
Mentions a passage of Aristotle regarding comets. Proposes that Origen's theory of the Magi may be correct. Perhaps the Magi saw a comet.
Apologizes for not returning sheets of Elements of Quaternions sooner, but was ill. Again cautions WH that method might be too advanced for elementary readers.
Offers some possible explanation for what the unnamed observer saw [see GA's 1860-3-1].
Offers his services as a coachman.
May include JH's position on Neptune discovery in a new edition of Cycle of Celestial Objects. Will review objects catalogued in the volume with refractor.
Passes on information on stars received from a Bengal pilot.
Is arguing for the development of a British metrical system based on the length of the polar axis of the earth.
News of the birth of her grandchild. Husband and two sons are gone back to Ceylon. Hazards and illness while travelling there.
Sending letter of Prof. Asa Gray. American Academy would like to acquire some of the back numbers of the publications of the R.A.S. Is grateful for JH's mention of his work on the chemical elements. Will be in London for a week or two.
Asks JH to become a subscriber to a work that HS is bringing out. Lists prominent persons who have already done so.