Thanks for notice on first performance of Melbourne telescope and its contributions to knowledge about nature and role of nebulae. Comments on relationship of nebula and apparently associated stars. Looks forward to report on Magellanic Clouds.
Thanks for notice on first performance of Melbourne telescope and its contributions to knowledge about nature and role of nebulae. Comments on relationship of nebula and apparently associated stars. Looks forward to report on Magellanic Clouds.
Discusses in detail the then currently debated issue of a 'mintcharge or seigniorage' on gold coinage. Also discusses the idea of an international coinage.
Encloses letter regarding coinage under discussion in Parliament.
Is unaware of experiment measuring amount of absolute error in transit measurements. Discusses matters relating to coinage and the standards underlying it.
Agrees with GS's clarification of 'continuous spectra' and other terms [see GS's 1869-9-2]. Includes a copy of part of a letter from John Herschel [JH's son] about solar prominences.
Corrects a misstatement JH made in his 1869-8-30 letter to the Times.
Thanks for catching JH's error. Will write to the Times and substitute 'Mr. Smith, M.P.' for 'Col. Smith.' JH does not understand 'tariff of conversion' or how it will simplify calling in old coins. Prefers 'Binary system' to 'absolutely demonetizing silver.'
Is delighted to see him astride one of his old hobbies. Regarding the edition of William Spence's Mathematical Essays. Only remembers an 1819 one. His own health is not good.
Sees no likelihood that private meeting would resolve issue between JH and JS. JS misunderstood JH's argument on valuation of British coins and currency. Encloses JS's note to Editor of the Times.
Suggests the planet Mercury may be a good subject for his spectroscopic experiments. Gives comments and explanations on his proposals. May like to communicate the results to the R.A.S.
Note to correct calculations in an earlier letter [see JH's 1869-9-20].
Burn his [last] letter as he made a blunder in his geometry. Cannot imagine how he made the blunder. Gives new formulae for observing Mercury.
Writes of children's accomplishments. Discusses possible changes in nebula near Eta Argus.
Reply to FC's 1869-9-27.
Comments on the proofs of his book that he has received so far. Has been ill and not feeling like intellectual work, so would he request his printer to send no more sheets for the time being.
JH responds to UL's concern about the Isaac Newton-Blaise Pascal forgeries [see UL's 1869-10-4].
Sends [William Whewell's] 'Isle of Sirens' and an acknowledgement to it in 'skimble skamble Hexameters.' Is eager to receive solar photographs and will send others by Professor [George?] Morton.
Comments on liquid and gaseous states of matter and on colloids; appreciates EB's kind words about JH's son Alexander.
Calls attention to James Grahame's History of the United States of North America. Criticizes the Saturday Review for having slighted that work.
Discusses an exposed case of forgery involving supposed manuscripts of Blaise Pascal and the mathematician Michel Chasles.