Comments on the reports of the birthday celebrations for JH's aunt Caroline.
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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.
Comments on the reports of the birthday celebrations for JH's aunt Caroline.
Presents 'tables for facilitating the approximate prediction of occultation and eclipses for any particular place,' so that seamen without specialized backgrounds in mathematics can observe and improve hydrography.
Sends some results concerning undisturbed parabolic motion. Laments the Irish famine.
Is very grateful for his assistance and encloses the page of the report in which he publicly acknowledges this. Further results since the return of the great atmospheric wave of 1845.
Sending a series of magnetical and meteorological observations made at the observatory. Comments on these.
Returns WB's proofs. Compliments WB's successes in meteorology. Barometric waves may be caused by something 'complementary' in opposite seasons or hemispheres.
Has signed the certificate, and stated that FG is known to him.
If given precise instructions, will attempt to obtain the prismatic spectra from Toronto and St. Helena that [Robert] Hunt requested [see Hunt's 1847-3-3].
Attached letter from Edward Sabine [see Sabine's 1847-4-7] will allow RH to communicate directly with Sabine.
Is reading JH's book and marvelling at the condensed amount of information it contains. Has been observing some of Wilhelm Struve's more difficult objects. Regarding the double star Antares. Has been testing his telescope for errors and found it accurate.
Meeting for the formation of a new club took place last Monday. Gives list of persons who attended. To be called the Philosophical Club. Outlines its rules and regulations.
Studies two possible orbits of Gamma Virginis; sends complete descriptions of both, including calculation of the apparent and actual ellipse. The first orbit combines the data of other astronomers.
On WH's 'Hodograph' and theorems of parabolic motion and the relation between velocities, initial velocities, and time. Praises WH's son. Cape Results nearly finished. Revising book on astronomy. Plans to 'attack' quaternions. Mentions parabolic functions and Benjamin Peirce's claim that the discovery of Neptune was accidental.
Skeptical over plan for galvanic illumination of wires. Has not yet seen J. B. Biot article; states he has always held Biot in high regard. Discusses naming of new planet.
Sends angular results from various astronomers using similar epoches.
Will be pleased to accept his offer of the glass wedges. Bad weather has upset his observations. Gives some of his recent observations. James Challis doubts the existence of a ring round Neptune. Is not impressed by Capt. W. S. Jacob's observations.
Are preparing an objective for JH, which they expect to send in August.
Asks JG to allow JH to join the Philosophical Club [see JG's 1847-4-17] on a trial basis for a year or two.
Asks to be allowed to join the new Philosophical Club on a trial basis [see letter of same date to John P. Gassiot].
Will forward JH's note. Is pleased he will be joining the new club. Wishes him happiness in his retirement.