Agrees with GS's assessment of Ernst Klinkerfüss's paper [see GS's 1866-2-27].
Agrees with GS's assessment of Ernst Klinkerfüss's paper [see GS's 1866-2-27].
Comments further on Ernst Klinkerfüss's work [see JH's 1866-2-28]; on the behavior of light emitted by an electric spark.
Carefully describes how to pack actinometers being shipped to India.
Acknowledges receipt of paper on nebulae.
On a correction to a report [JH's obituary on William Whewell].
Describes problem with spectral lines in telescope while trying to understand William Huggins's results.
Comments on impossibility of increasing the intrinsic illumination of a source with a telescope; how to obtain the spectrum of red flames of the sun.
Believes that expensive telescope wanted by William Huggins is unnecessary for the intended purposes [see GS's 1867-5-3]; JH offers a telescope of his own to R.S.L.
Agrees reluctantly to write obituary notice of William Whewell; wishes he had been asked earlier.
Comments on the time needed by JH's son [John] to perform observations requested by R.S.L.; thanks for list of tutors [see GS's 1867-5-13].
Note accompanying JH's obituary notice of William Whewell.
Agrees to allow Lord Oxmantown [Laurence Parsons] to add JH's remarks to Lord Oxmantown's paper.
Asks GS to explain to R.S.L. Council why JH's son John cannot appear at a meeting of the Council, as he is due to sail for India.
Does not know if equipment from R.S.L. reached JH's son John at Southampton [see GS's 1867-11-18].
Comments on JH's son's reports [see GS's 1868-11-6]; recalls idea of JH's father, William Herschel, about nature of solar light; transit of Mercury 'beautiful'.
Further comments on solar light [see GS's 1868-12-1].
Returns paper on musical scales; agrees with GS's comments on A. Prazmosky's paper [see GS's 1868-12-10].
Comments on a paper on the effects of lateral movement in diminishing the intensity of sound.
Requests sending of a copy of recent R.S.L. Proceedings to JH's son in India.
Correction to be made in JH's biographical sketch of William Whewell.