Sending a copy of his speech on Weights and Measures. Will be spending the recess in Dorset.
Showing 121–140 of 1894 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.
Sending a copy of his speech on Weights and Measures. Will be spending the recess in Dorset.
Has received the report on his paper on glaciers. Comments on one or two points. Hopes it will create interest in the subject.
Expressing sympathy on the illness of Margaret Louisa Marshall (JH's daughter). Would like to hear the latest news by the bearer. Would JH append his name to the enclosed form.
Comments on the sun spots he has been observing, and some new phenomenon. Any chance of a visit from JH?
Has returned James Nasmyth's letter and has never seen Warren de La Rue's letter. Comments on Nasmyth's 'willow leaves.' Have been observed at Greenwich Observatory. Thanks for his remarks on the best kind of eye-piece.
Hopes the JH's are all well. Would like an eye-piece made by Mr. Cook[e] or any leading optician on the principles of JH as laid down in his paper in R.S.P.T. Shall he refer the optician to this paper?
Is grateful for his communication on the proposed solar eyepiece. Will call round on his way to town to ascertain if he can leave the manuscript with [Thomas?] Cooke, the instrument maker, so that he can have some idea of the work involved. James Nasmyth will pay attention to screen projection.
Is uncertain if he has detected the lightlines on the solar surface to which JH has called attention, but there does seem to be something unusual there. No sun spots are visible just now.
Regrets he was out when JH called. Thanks for the elegant verses. Will be moving shortly to a place nearer London, which promises much. Gives notes on some more sun spots, which he has recently observed.
Much obliged for his kind notes on sunspots; there has been a wonderful variety lately. Will make a study of the Julian dates. Can see the Crystal Palace fireworks splendidly from his house.
As JH has approved Dr. W. C. Wells's Theory of Dew he encloses extracts from the Gardeners' Chronicle to show that Wells based his paper on a false theory.
Makes no claim to originality for his experiments; thinks highly of Dr. W. C. Wells but would like to know whether [Pierre] Prévost's theory is tenable.
Giving observations of a new star observed by him and some of his correspondents.
Much obliged for his observations of June 1842. Probably the same star that is now being observed. Gives observations sent him by G. B. Airy.
Has just found that the bands of light from the comet are resolved by the spectroscope into bands that constitute a modified form of carbon. The spectrum of the comet was compared directly with a current of olefiant gas.
Is grateful for his note. Has sent a paper to the R.S.L. on cometary phenomena and encloses a copy of the part in which he refers to JH's views. Would be glad if it were possible to explain the phenomena of tails.
Much obliged for his suggestions regarding the comet; comments on these suggestions. His own observations were made on the comet, not its tail. Would be pleased for him to visit his observatory when in London.
Sending a photograph of a solar prominence he has received from Major J. F. Tennant. Comments on various features. At the Transit of Mercury he saw the phenomenon described by J. H. Schröter.
Has arranged for the last R.A.S.M.N. to be sent to him. Lieut. John Herschel has detected a fourth line in the spectrum of the Nebula in Orion.
Sends a proof of JH's obituary of W. R. Dawes. The concluding part of the manuscript was mislaid; would he therefore re-write the missing portion. Hopes to attend Professor Alexander Herschel's lecture this evening.