Reports quite unsatisfactory results from gun firing sound experiments [see JH's 1852-3-23].
Showing 141–160 of 168 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 quite unsatisfactory results from gun firing sound experiments [see JH's 1852-3-23].
Urges that Thomas Maclear's son be appointed to assist Maclear in the observatory [at the Cape].
Will instruct Smith, Elder & Co. to provide a presentation copy of JH's Cape Results to Queen's College, Belfast. What has happened with JH's recommendation about Thomas Maclear's son [see JH's 1852-6-11]?
Returns a letter from Thomas Maclear to FB, and then JH expresses his concern about the state of health and work of Maclear.
A note expressing JH's thanks for allowing JH to read a letter from Thomas Maclear to FB; JH again expresses his concern for the welfare of Maclear.
JH's article on 'Meteorology' [for the Admiralty Manual] is finished; JH will make some comments on aneroid barometers in the preface.
Comments on the work of T. G. Taylor in reducing the observations for [Stephen] Groombridge's catalogue, and on an appropriate remuneration for the work. Enclosed are comments for the benefit of Taylor.
Offers opinions about the instructions to be furnished to the Cape astronomer, especially about tide and meteorological observations, and about surveying an arc. JH hopes to see Thomas Henderson before Henderson leaves for the Cape to assume the post of astronomer there.
Sent as a letter of introduction for Captain [William] Edie, who was hurt on an expedition in southeastern Africa, and who knows much about the region.
Agrees with FB and others about the need for adequately trained men to be sent out to remeasure N. L. Lacaille's arc.
Informs FB that it is JH's intention to resign as secretary of the R.S.L. at the next anniversary meeting.
His views on the imperfections and lack of suitable instruments at the Cape Observatory.
Report for the Lords of the Admiralty on the desirability of supplying Thomas Maclear with a transit circle.
Is returning the proof of [Stephen] Groombridge's catalogue. Comments on the expense of printing it. Is pleased that Thomas Henderson has been appointed Cape Astronomer.
Comments on the instructions for the Cape Astronomer and adds some of his own.
Responds to FB's request for advice regarding instructions for Thomas Henderson upon taking the position at the Cape Observatory. Suggests Henderson supervise tidal observations, but not get involved in measurement of arc of meridian. Hopes to see Henderson before his departure, but JH's mother now gravely ill.
Responds to FB's request for advice on a political document prepared by Thomas Drummond analyzing parliamentary representation and taxation in mathematical terms.
Answer to FB's queries regarding chronometers.
Has received the letters and parcels safely. Is starting reducing his sweeps. Observations in Dublin Observatory. Comments on the various functions of observatories. News of scientific events at the Cape and various expeditions in progress.
Responds to request for advice on operation of the observatory established at Mauritius by John A. Lloyd. Urges it can profitably make meteorological observations and positional determinations for southern stars. Stresses the need for prompt reduction of observations.