Comments on various kinds of scales for measuring distances.
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 various kinds of scales for measuring distances.
Analysis of quantities of coins in circulation. Explains ways in which gold and silver are diverted from coins to other purposes.
Reports total coinage from 1814 to 1853 and silver coinage from 1801 to 1815. Gives reasons why gold coins in circulation 'fall far short' of those minted. History of copper coinage since 1790.
Would he look at the accompanying work by O. P. A. P. Dufrénoy. Feels that Dufrénoy would advocate only that which was right.