Comments on the use of different telescopes and their effect on the albedo of the sun, related to solar eclipses [see JH's 1867-5-5].
Showing 41–60 of 157 items
Comments on the use of different telescopes and their effect on the albedo of the sun, related to solar eclipses [see JH's 1867-5-5].
Will take into account JH's suggestions [see JH's 1863-2-13] and see where this leads.
Reminds JH that the algebraic formulation of the theory of the achromatic telescope eyepiece was formulated by GA.
Replies to JH about the date of the transit of Mercury [see JH's 1864-1-[26]].
Material sent by JH [see JH's 1862-4-2] arrived safely.
Acknowledgment of receipt of more material from JH [see GA's 1862-4-3].
Needs to know, from JH, the date of the nebula observations [see GA's 1862-4-9].
Acknowledges receipt of more material from JH [see JH's 1862-4-13].
Sends JH a copy of the form to be used for reduced observations [see JH's 1862-4-17].
Acknowledges receipt of payment [see JH's 1862-4-25]; asks for final approval of printing structure for the nebula catalogue.
Seeks clarification of the position of one of the listed nebulae [see JH's 1862-4-30].
Attempts a more accurate estimate of work to be done on nebula catalogue [see JH's 1862-6-27].
The reductions are essentially complete; encourages JH in his part of the work and concludes 'It will be a noble work' [see JH's 1862-11-5].
Is sending JH the completed sheets of nebula reductions for printing [see JH's 1863-2-6].
Is JH interested in seeing G. F. J. A. Auwers's catalogue of JH's and William Herschel's nebulae?
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.
Correcting work is gradually drawing to a close [see JH's 1863-6-4].
Additional information is provided to that sent by E. J. Stone [see ES's 1863-7-9].
The practice at the Royal Observatory is to compare proof copies with calculation sheets [see JH's 1864-2-5].
Passes on information on stars received from a Bengal pilot.