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.
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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.
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.
The flood has done much mischief to his baseline; there are still some holes to be filled in. Has written to Col. G. G. Lewis. Hopes to see JH at breakfast on Thursday.
Proceedings with the Circle went on as well as expected; fixed the additional microscopes with plaster of paris. Sends the P.M.that contains F. W. Bessel's paper on the repeating circle. Opposition of Mars will require the use of the circle in the last of the present month.
Asks TM for some trigonometric information regarding a particular set of points.
Check proofs, including first announcement of JH's 'Planetary Nebulae.' Instrument inconsistencies produce immense labor for TM and C. P. Smyth. Tempted to omit one-third of readings. Praises Smyth; happy to be rid of William Meadows. Speculates on causes of TM's and JH's headaches. Will propose that Fearon Fallows's observations be published.
Problems determining exact times of lunar eclipses. Cites B.A.A.S.Rep. article by T. R. Robinson on change of color. Base line covered by water after recent storm.
Compares TM's observations of 'spots' and colors [on lunar surface] to observations by others. At next eclipse, TM will use drawing of moon's face with spots labeled on it. Did JH note occultation? Chronometer is slow.
Gives latitude of 'this observatory' used in reduction of 'Comet stars.' Will accept systematic correction in all data to compensate for differences between TM's and Thomas Henderson's data. Instruments are erratic since telescope was moved. Using transit instrument only for sun, planets, and [reduction of Thomas] Brisbane's stars.