Comments on a paper on the effects of lateral movement in diminishing the intensity of sound.
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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.
Note to accompany an extract from JH's son John's letter, reporting on his observations of solar prominences.
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.
Writes to support grant request from Georg Erman of Berlin to allow Erman to do calculations on magnetism observations from circumnavigation of world.
In commenting on a paper on actinometric measurements varying with depth of atmosphere, JH questions the accuracy of the equipment used.
Thanks for grant of £50 from B.A.A.S. for calculations related to request from Georg Erman [see JH's 1870-5-6].
Requests some rewording of B.A.A.S. resolution [see JH's 1870-9-27].
On a correction to a report [JH's obituary on William Whewell].
Reports on paper [R.S.P.T., 159,. 575-] by [Thomas] Andrews on continuity of gaseous and liquid states of matter, believing it fit for publication.
Reports on Edward Sabine's paper [R.S.P.T., 154, 227-] comparing magnetic disturbances at Kew and Nertschinsk. Makes suggestion regarding period of solar spots and other matters, but deems paper worthy of publication.
Has completed catalogue of nebulae and star clusters observed by Charles-Joseph Messier, JH's father, and JH. Requests R.S.L.'s help in 'reducing [them] to an epoch.'
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