Forwards letter to HR from [L.-F.-C.?] Breguet, who desires to construct a metallic thermometer for JH. HR requests quick reply from JH.
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Forwards letter to HR from [L.-F.-C.?] Breguet, who desires to construct a metallic thermometer for JH. HR requests quick reply from JH.
Sends list of works received on an official form. Followed by letter. Suffers deeply from death of his wife, daughter, and her son. Had hoped to see JH in London, but JH was absent.
Realizes that they have never been introduced. Nonetheless, requests JH's personal opinion on a matter of high importance to science. Asks JH to critique a memoir.
Sends some memoirs to JH. Is keeping the most recent ones. Has always cited JH in his works. Requests JH's critique of AP's work on photo-electric images. Leaves London in an hour and regrets not having met JH.
Thanks for memoirs sent.
Important office in French Institute has been passed on to MS. Compliments JH and many other members of R.S.L., and suggests exchange of ideas, asking JH for delivery of latest edition of JH's astronomy text, discusses idea of heat as motion, and other concepts. Expresses high scientific aspirations.
Updates JH on activities of Balloon Committee, and thanks him for suggestion regarding temperature measurement. Mentions improving health of Mrs. Sykes.
Gives account of observations on lunar radiation, including detailed description of experiments.
Apologizes for not having seen JH's paper on spectra of colored flames and thus having overlooked JH's prior claims [see JH's 1861-7-21]. Will try to make amends.
Clarifies that JT does not believe moon radiates cold itself, but effects are 'as if' it did. Relates this to atmosphere.
Reminds JH that the algebraic formulation of the theory of the achromatic telescope eyepiece was formulated by GA.
Asks for advice on matters in which JH is 'the highest authority in this or any other country.'
Asks JH to contribute to The Educational Times.
Appeals for JH's support of the Life Boat Institution.
W. H. Smyth publishes essay. Sends family photographs.
Informs JH that a printer will make multiple copies of a paper for him.
Tells JH that he can be ready to see him at any time.
Describes last days of Mary Maclear. Burial on Observatory grounds.
Observes and measures sunspots. Takes spectrum of solar photosphere; detects sodium and magnesium absorption lines. Pleased with Alexander Herschel's work on the solar spectrum; wishes he would begin work on stellar spectra.
Regrets missing JH's visit. W. H. Smyth having trouble walking.