Is returning the Proceedings of the Manchester Society, and The Magnetical and Meteorological Observations for 1851-58. Regarding the registration of magnetical disturbances.
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Is returning the Proceedings of the Manchester Society, and The Magnetical and Meteorological Observations for 1851-58. Regarding the registration of magnetical disturbances.
No summary available.
Concerning JH's memorial to W. R. Hamilton's daughter. Holiday in Keswick. Comments on JH's papers on optics and force.
Is working on a problem in polarized light, and finds his result disagreeing with F. J. D. Arago's third law; leads JH to think light cannot be undulatory in nature.
Writes about a long standing, very old, member of the Royal Observatory's Board of Visitors [W. H. Smyth] having been summarily dismissed from the Board.
Explaining JH's polarization difficulty [see JH's 1865-10-16].
Printed address of the Astronomer Royal to individual members of the Board of Visitors of the Royal Observatory.
Comments on GA's explanations about polarized light, and discusses GA's idea of the nature of light [see GA's 1865-10-18].
Saddened by the poor treatment of W. H. Smyth [see GA's 1865-10-18].
Further regarding polarized light and its interferences.
Passes along a report that someone took a 4-foot telescope to the top of Snowdon [mountain], from where he could see the eight satellites of Saturn and the rings of Neptune.
Realizes that GA is quite correct [see GA's 1865-10-30]; JH had neglected a basic principle about interference.
Acknowledges receipt of Royal Observatory's astronomical, meteorological, and magnetic observations for 1863.
Has noted that Josef Stefan of the Vienna Academy of Sciences holds views on light and its polarization similar to GA's [see GA's 1865-10-30]. Agrees with GA's correction of an essay on Julius Caesar's landing in Britain.
Approves of GA's development of a new type of eyepiece for use with the Royal Observatory's transit circle telescope.
Regarding I. K. Brunel's bridges and JH's letter on suspension roofs. Effects of a thunderstorm on a water barometer.
No summary available.