Regarding a reflector for observation of the forthcoming eclipse.
Regarding a reflector for observation of the forthcoming eclipse.
Replying to JH's letter of 24 Jan. 1871. Thanking him for his suggestions. Has not seen JH's Cape Observations. Has seen report of R. W. Bunsen's experiments. Comments on these experiments.
Has notified J. C. Poggendorf of JH's notes on calorimeters. Discussion of Michael Faraday's indebtedness to JH's Prelim. Discourse.
Has received a letter from J. C. Poggendorf. Further reports on his experiments with gas.
Encloses notice which J. C. Poggendorf has published regarding JH. Details of further modifications in his experimental apparatus.
Regarding the publication of the Cincinnati catalogue of double stars. Is sending the Annual Report of the Cincinnati Observatory.
Acknowledging receipt of JH's Slough catalogues. Further news regarding the publication of Professor O. M. Mitchel[l]'s Observations.
Has been unable to locate [W. L.] Newman's tables (astronomical) at the R.A.S. Would he please send further details.
He has seen C. J. G. Pastorff's drawings at the R.A.S. Still no trace of Mr. Newman's tables.
Question regarding auroral streams. [Part of this letter is missing; digest was obtained by consulting JH's reply of 1870-11-3]
Thanking him for his reply to his query of 1870-11-1.
Sends extract from Eduard Fournier's Le Vieux-Neuf.
Encloses photographs taken of the last eclipse. Draws his attention to certain aspects of the eclipse.
Explaining why the moon's disc is circular.
Confined by accident but is grateful for his paper on musical scales and offers his comments on it.
Further comments on JH's paper on the musical scales.
Would he accept a volume of observations carried out at the Leyton Observatory?
Is grateful for his observations on the Leyton work. Will go through them and let him know the answers later.
Relating the dire condition of Dr. C. T. Beke and requesting financial assistance from JH.
Sends a copy of his book on the science of color. Their theories regarding color seem to becoming more popular.