Acknowledges receipt of Royal Observatory's astronomical, meteorological, and magnetic observations for 1863.
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Acknowledges receipt of Royal Observatory's astronomical, meteorological, and magnetic observations for 1863.
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.
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.
Comments on GA's explanations about polarized light, and discusses GA's idea of the nature of light [see GA's 1865-10-18].
Realizes that GA is quite correct [see GA's 1865-10-30]; JH had neglected a basic principle about interference.
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.
Saddened by the poor treatment of W. H. Smyth [see GA's 1865-10-18].
Approves of GA's development of a new type of eyepiece for use with the Royal Observatory's transit circle telescope.