Further report on a paper and drawing of [Francis] Abbot [very similar to WH's 1870-5-18].
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Further report on a paper and drawing of [Francis] Abbot [very similar to WH's 1870-5-18].
Expresses skepticism on the claims made by F. Abbott, observing from Tasmania, of the detection of changes in the Eta Argus nebula. Compares Abbott's drawings with drawings made by JH and and by JH's son John.
About an application to the B.A.A.S. for a grant to fund the calculations related to reducing the magnetic observations of 1847-48.
Continues to explain matters in perturbation theory. Stresses need for careful observations in solar eclipses. Doubts the existence of the hypothetical intermercurial planet Vulcan.
Thanks for work on diamagnetism and magne-crystallic action [Researches on Diamagnetism (1870)], which JH is excited to read. Mentions long-abandoned plans for magnetization experiments. Envies those who can see JT's 'magic' experiments at Royal Institution.
Cannot attend Eclipse Committee meeting but suggests that an observer carefully look for planets interior to Mercury's orbit, which would, if existing, reach conjunction during total solar eclipses.
Of toads in rocks and stones, and martins in blocks of ice under rivers.
Writes about JH's health; justifies writing by sending some curves prepared by JH's son Alexander.
Sends diagrams showing three new couplets of sunspots. The sun is entering a new phase of activity. Sends drawings made with a glass pen by his son Alexander.
Thanks for many works, especially double star catalogs, about which JH requests further information, and which will help JH's attempt to compile digest of all measures of all known double stars.
Comments on sunspot activity; agrees to inclusion of some paragraphs in a paper WD is writing.
Approves RP's method of preparing isographic projection charts of the distribution of bright stars, noting that JH's gauges of the southern stars are incomplete.
Of talking fishes, a great meteor falling in Tripoli, and the 'madness of man' in the wake of the Franco-Prussian War.
Talks about signatures needed for a fellowship certificate for the R.S.L.
Some comments about the proposed title change [see GA's 1870-7-31].
Is preparing a catalogue of all double star observations, and is having much difficulty with the observations of J. H. Mädler.
Discusses the signatures needed for a fellowship certificate for the R.S.L. [see JH's 1870-8-1 or earlier]; comments on the arrival of son Alexander home from a holiday in Norway.
Comments about some pieces of German poetry.
Requests that WH sign the certificate for the election of JH's son John as a Fellow of the R.S.L.
Apologizes for forgetting that since WH is on the Council of the R.S.L. he is precluded from signing [see JH's 1870-8-18].