Has just found that the bands of light from the comet are resolved by the spectroscope into bands that constitute a modified form of carbon. The spectrum of the comet was compared directly with a current of olefiant gas.
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Has just found that the bands of light from the comet are resolved by the spectroscope into bands that constitute a modified form of carbon. The spectrum of the comet was compared directly with a current of olefiant gas.
Comments on WH's spectroscopic examination of cometary tails [see WH's 1868-7-2].
Is grateful for his note. Has sent a paper to the R.S.L. on cometary phenomena and encloses a copy of the part in which he refers to JH's views. Would be glad if it were possible to explain the phenomena of tails.
Has been occupied with the wedding of his daughter [Amelia], so unable to read his paper before. Comments on the various theories regarding the tail of the comet. Regrets his statements do not agree with those of WH.
Much obliged for his suggestions regarding the comet; comments on these suggestions. His own observations were made on the comet, not its tail. Would be pleased for him to visit his observatory when in London.
Comments on WH's finding the carbon line in WH's spectroscopic examinations of cometary tails.
A note to accompany JH's biographical sketch of William Dawes.
Sending a photograph of a solar prominence he has received from Major J. F. Tennant. Comments on various features. At the Transit of Mercury he saw the phenomenon described by J. H. Schröter.
Thanks to WH for the photograph of solar protruberances; comments on polarization of light from the sun.
Has arranged for the last R.A.S.M.N. to be sent to him. Lieut. John Herschel has detected a fourth line in the spectrum of the Nebula in Orion.
Has placed Mr. Frosmard's letter before the Geological Society, and also discussed the matter with R. I. Murchison, but regrets he is unable to help.
John Tyndall left London in a hurry, but he has urged the claims of JH's son [Alexander] as a professor at the School of Mines.
Thanks for his article on musical scales. Misses a description of the elements of the simple scale. Comments on various theories.
Did not contemplate gratuitous contributions from JH.
Regarding JH's comments on a paper of Francis Abbott read at the R.A.S.'s meeting on 12 June. Believes the paragraph in question came from a paper of Sir William Herschel. Understands that Lieut. John Herschel has just examined this nebula.
Is preparing a sketch of Sir John Lubbock for a weekly, and would be glad of JH's opinion regarding Lubbock as a man of science and his advanced political views.
Answer has been delayed as SL's letter was directed to MacMillans. Can be no two opinions on the contribution to scientific knowledge of Sir John Lubbock. Has full confidence in his political opinions.
Can he publish JH's statement regarding John Lubbock? Outlines the wishes of other scientists regarding the printing of their views.
Sending his impression, formed during a recent visit to Dublin, of the Great Telescope destined for Melbourne. Considers it a triumph of mechanical invention.
The Archbishop [of Canterbury, C. T. Longley] will be lunching with EL on the 24th and if JH is able will he join them for lunch.