Has seen colored fringes on clouds described, and explained, in a journal. Does GA accept the explanation?
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Has seen colored fringes on clouds described, and explained, in a journal. Does GA accept the explanation?
Explains how to detect errors in catalogued positions of stars. List of new nebulae in [G. F. J. A.] Auwers's catalogue.
Sends GA [see GA's 1863-11-21] JH's copy of the Melbourne telescope correspondence and reports; needs information from GA and Edwin Dunkin about the sun's motion, although JH questions some of Dunkin's work.
Does JH need the original calculation sheets to deal with the errors in the nebula catalogue [see GA's 1863-2-23]?
Thanks GA for the papers sent; asks GA to review enclosed note on solar motion [see JH's 1863-11-22].
Comments on the ease of calculation in geodesy in JH's version of the English system of units, and asks GA for some clarifications as JH prepares the seventh edition of his Outlines Astr.
Offers a few ideas to GA [see GA's 1863-2-9], but does not have a coherent explanation.
Will take into account JH's suggestions [see JH's 1863-2-13] and see where this leads.
Anxious to receive final sheets of nebula catalogue from GA [see GA's 1862-11-19], as JH wants to enter the descriptions and complete the work.
Once again anxious about completion of nebula catalogue, and about cost over run [see Edward Stone's 1863-1-14].
Is sending JH the completed sheets of nebula reductions for printing [see JH's 1863-2-6].
Acknowledges receipt of nebula catalogue sheets from GA [see GA's 1863-2-6]; apologizes for JH's anxious letter [see JH's 1863-2-6].
Has found a few minor errors in the calculations checked so far [see GA's 1863-2-6]; comments on magnetic tracings JH received from GA.
Is JH interested in seeing G. F. J. A. Auwers's catalogue of JH's and William Herschel's nebulae?
Might have saved JH some work if he had known what G. F. J. A. Auwers was doing [see GA's 1863-2-20]; has found some more errors in nebula calculations.
Sends GA a list of errors found in the sheets for the nebula catalogue [see GA 1863-5-14].
Provides last list of errors and explains JH's role in detecting them [see GA's 1863-5-26]; is worried about the task of proofreading.
Is working on the correction of calculation errors [see JH's 1863-5-31]; GA and his assistants will deal with the problem of proofreading.
Comments on GA's activity in correcting the calculation errors [see GA's 1863-6-2].
Correcting work is gradually drawing to a close [see JH's 1863-6-4].