Compares his observations for some stars with the observations of TM.
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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.
Compares his observations for some stars with the observations of TM.
Polishing telescope mirrors.
Asks TM to attend a meeting of the Cape of Good Hope Association for Exploring Central Africa.
Sending the spherometer. Discusses stars and nebulae observed near the South Pole.
Reports that Dr. Andrew Smith received a grant of £1500 from the British government.
Gives a list of the close Polar stars. Started last night to observe the stars on JH's list but was put off by JH's right ascensions. Will observe each star again this night. John Fairbairn cannot divest himself of the apprehension of danger to Andries Stockenström.
Encloses a plan of the triangulation and comments on his method. Thinks of making the baseline on the parade a permanent standard and has written to the Governor to obtain permission, as there is friction between the Board of Ordnance and the Cape Authorities over the ownership of the Parade. Has had no reply from the Governor as yet.
Sends the results of one good night's observations entirely reduced. More transit observations are in process of being reduced.
Sending the mean of all the observations on the polars. Comments on the base line, and gives readings.
Sends two drawings of C. P. Smyth and a portrait of Isaac Newton sent by Dr. [John?] Lee; also a plan of the triangulation.
Thanks for the perusal of [W. H.?] Smyth's letter; also had one, which he will send later when he has considered certain points. The zenith sector is on board the Wellesley, expected daily. Benjamin D'Urban has granted all TM's wishes regarding the survey. Re-surveyed the ground this morning.
Examined the base line on Tuesday; gives a resume of the operations. On Monday night observed the Polar stars; comments on the disappearance of certain stars in the Brisbane catalogue. Thinks a chain is preferable to deal rods in measuring base lines.
Hard at work mapping the polar stars. Rejoices at Dr. Andrew Smith's success. The results of tonight will be delivered by J. K. Gibbs in the morning.
Polar region was thick this evening so that very minute stars were invisible. Set C. P. Smyth to the transit and himself at the circle to observe JH's list of stars. Received the spherometer safely. Intends to stake out the base line again on Tuesday. [Andrew?] Sm[y]th's expedition will be a serious undertaking in the Eastern direction.
Asks TM for some trigonometric information regarding a particular set of points.