Suggests reducing the number of Greenwich astronomical observations printed, but not reducing the magnetic and meteorological observations.
Showing 181–200 of 425 items
Suggests reducing the number of Greenwich astronomical observations printed, but not reducing the magnetic and meteorological observations.
Not well enough to attend Visitation Day at the Royal Observatory; fears JH will not likely attend any future meetings and should perhaps withdraw from the Board of Visitors.
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.
Has obtained puzzling results when reducing JH's observations of the sixth satellite of Saturn.
JH has revised his account of the moon's motions given in JH's Treatise Astr. in preparation for JH's Outlines Astr.
Has made some minor adjustments in JH's satellite of Saturn results [see JH's 1846-11-2], but the major discrepancy still exists.
GA's suggestions [see GA's 1846-11-19] have helped JH solve his problem; now JH has a problem with observations of the second satellite of Saturn.
Encourages GA to develop some experiments to study the electrical phenomenon [see GA's 1861-9-23] more carefully.
Offers a few ideas to GA [see GA's 1863-2-9], but does not have a coherent explanation.
Recognizes the validity of GA's claim to the eyepiece theory [see GA's 1861-3-27]; JH did not have space to deal adequately with the subject of telescopes.
Question about whether the effect of Venus on the motion of the moon's node is measurable; this was brought on by reading J. H. Seyffert's writings.
Proposes that R.A.S. award medals regarding the discovery of Neptune to both U. J. J. Leverrier and J. C. Adams, giving first honors to Leverrier, and specifying distinctly the grounds for awarding the second. Hopes his resolution will not be seen as blaming anyone and that it will have a 'healing and a friendly effect.'
Invites GA to stay at Collingwood and explore the area for evidence of Roman occupation [see GA's 1851-11-4], and talks about a friend of JH's family. Indicates a price offered for weights, but has had no response [see GA's 1851-11-3].
Is not very knowledgeable about local terrain that might help GA; adds comments about weight buying, and offers a solution [see GA's 1851-11-5].
Is seeking clarification about some papers GA sent to JH.
Raises with GA the likelihood of an error in a date of a transit of Mercury in a paper by F. A. Winnecke.
Has a problem with the explanation of interference bands produced by mica being placed between the eye and prism-produced dispersion; the explanation is Baden Powell's.