In commenting on a paper on actinometric measurements varying with depth of atmosphere, JH questions the accuracy of the equipment used.
Showing 121–140 of 380 items
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.
In commenting on a paper on actinometric measurements varying with depth of atmosphere, JH questions the accuracy of the equipment used.
Thanks for grant of £50 from B.A.A.S. for calculations related to request from Georg Erman [see JH's 1870-5-6].
Comments on JH's concerns about actinometric measurements [see JH's 1870-9-20]; recommends the study of periodicity of waves on Atlantic Coast.
Requests some rewording of B.A.A.S. resolution [see JH's 1870-9-27].
Reports on status of John Robinson's eye following cataract surgery.
Announces business meeting of Council on 11 Mar.
Mrs. W. Vivian is visiting south of France.
Has received, through the good offices of the Smithsonian Institution, a number of back issues as well as current issues of the Proceedings of the American Philosophical Society of Philadelphia. The best way to send these volumes is by way of the Smithsonian.
Asks a whole series of silly riddles, and JH complains of not having heard from AD.
Comments on use of 'air' lens rather than glass in some circumstances.
About a grant to support [H. J. R.] Petersen while he carries out the reduction of terrestrial magnetic observations.
Thanks CB for receipt of a meteorological work by CB's son [B. H. Babbage], now in Australia. JH says he grows stupider every day and is a 'prisoner in the bonds of bronchitic tyranny.'
Would support the application for a grant [see JH's 1870-5-12], but would like to see some changes in the way calculations are made.
Is pleased to hear of signs of recovery for RM from his ill health, and all wish him a complete recovery.
Note to accompany forwarding of a letter; remarks on T. R. Robinson's upcoming cataract surgery.
Comments on the effect of great temperature variations on the speculum of a telescope.
Responds that R. A. Proctor's theory [see GA's 1870-2-5] is possible, and explains why.
Responds to proposals of JH [?], and comments on the problems of the Royal Mint charges for coinage, especially coinage for foreign authorities.
Refers to several items of correspondence, and then comments on the calculation of Gaussian earth-constants to a higher power than has been done to date.
Has despatched a letter on a subject of concern to JH to the editor of the Saturday News, but now feels it is too feeble. Is mostly feeling too ill to write or think for long.