Discusses papers concerning light on [William] Sharpey's list. Discusses, very critically, Henry Brougham's optical researches.
Discusses papers concerning light on [William] Sharpey's list. Discusses, very critically, Henry Brougham's optical researches.
Thanks JH for information regarding Henry Brougham [see ES's 1868-9-29 & 1868-10-8]. Also for comment on polarization of aurora. Encloses Captain [John?] Hay's letter, but not plate.
Some photographs support the sudden disappearance of the spot on 17 Sept. Some photographs are misdated. The relation of Jupiter and sunspots suggests previously unknown interconnections in the solar system.
Sent JH's remarks to Mr. Titterton at Ely. Will endeavor to maintain accuracy. The remarks about Jupiter's action are contrary to the general consensus that planets in opposition close up spots.
Thanks for proofed pages. Received Astronomische Beobachtungen auf der Sternwarte zu Bonn. Finished determining by electric means the different observational longitudes of Leiden and Brussels.
Hopes that JH will contribute series of papers under heading, 'A Life's Retrospect in Science,' from various periods of JH's career, for publication in Good Words.
Thanks JH for his pamphlet on musical scales.
Further regarding the theory of sound.
Is grateful for his article on musical scales. Queries regarding musical sounds. Has had to leave his old abode due to building operations.
Was pleased to receive JH's translation of Dante. Wished he lived near enough to pay them a visit.
Thanks for verses on the transit of Mercury; comments on observation of an auroral arch and eclipse observations of the solar corona.
Thanks for his article on musical scales. Will read it later when he has time. Comments on the system of equal temperament. Will send some of his own papers later.
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