Reports on JH's actinometer observations. Explains why he subscribed to 'Col. [Harry] Smith's piece of plate.'
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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.
Reports on JH's actinometer observations. Explains why he subscribed to 'Col. [Harry] Smith's piece of plate.'
Asks for TM's barometer and thermometer readings for 20-28 September.
Compares JH's and TM's barometric readings. Criticizes Pierre Morin's work.
Confident that 1837 will be his last year in Africa. JH's catalog of nebulae and double stars is nearly complete. Has a series of observations of Halley's Comet from 1836-1-25 to 1836-5-5. Although JH is too busy to undertake any magnetic studies, he has been providing information about Carl Gauss's magnetometer to the new observatory in Bombay. Recalls that Charles Babbage mentioned the 'principle' of Gauss's method 'at least 10 or 12 years' ago.
Reports in detail JH's observations of Halley's Comet as observed from the Cape of Good Hope.
Comments on the wise measures introduced for the governing of the Cape Colony. Has taken over the editorship of a periodical and intends to introduce some of the best local writers. Would welcome JH's advice.
Sending a few more of the 'examinations.' Also sends an extract of a letter from Mr. Philips. The English papers have got hold of Charles Grant's (Baron Glenelg) dispatches.
Sends a copy of the printed paper by RF. Regarding chronometer measurements. Has just received a communication from Alexander von Humboldt in which he seems to have anticipated both JH's and RF's ideas. Comments on a new machine for sounding.