Note on diurnal changes in [magnetic] variation at St. Helena and on estimated cost (£950) of observatory at St. Helena.
Note on diurnal changes in [magnetic] variation at St. Helena and on estimated cost (£950) of observatory at St. Helena.
Declines the invitation to the annual Hunterian Oration and dinner. Now that JH is moving even farther away from London, he feels he must reluctantly resign as a member of the Trustees of the Hunterian Collection.
Did not vote for RM's friend at the R.S.L. because JH missed the meeting. JH will also miss the next meeting of the Geological Society, as he is returning to Collingwood.
Invites Mr. Wagner at Eton to bring his pupils to Slough to observe an occultation [of Jupiter by the moon?].
Thanks JH for invitation to Slough. Will come to visit.
Sends the corrections of the Meteorological Instructions to JH. Presents a new plan for recording data.
Discusses corrections and title page of a report. Discusses the damage to Charles Riddell's instruments.
Herschelian Telescope Song in English and Latin, translated by [T. I. M.?] Forster into Latin. Requiem of 40-foot reflector sung at New Year's Eve 1839-40.
Instruments JH referred to may not be best for JH's purposes.
Letter designed to accompany report of R.S.L. Joint Committee of Physics and Meteorology. Discusses plans for magnetic observatories and for James Ross's expedition.
Reports on William Parson's paper [see RSPT, 130 (1840), 503-] on large mirrors for reflecting telescopes. Suggests omitting comments on William Herschel's mode of polishing, but recommends paper for publication.
Reports on and suggests improvements in but recommends publication of a paper [see RSPT, 130 (1840), 325-] by Robert Hunt on iodine's effect in rendering 'argentine paper' sensitive to light and thus useful for photographic purposes.
On what is to happen at the expiration of a three year period assigned for the undertaking of certain magnetic observations.
On the 'misfortunes & mishaps' of the Aden magnetic observatory and on the proper care of magnetical instruments.
Notice on the 'final laying up' of the Old Telescope, with a 'Requiem of the Forty-Foot Reflector,' sung by JH's family on New Year's Eve.
Reports on and enthusiastically recommends for publication G. B. Airy's paper on light polarity [see RSPT, 130 (1840), 225-], which JH believes contains true explanation for phenomenon of spectra bands.
Confides that the past year has been 'a sombre one ... but not unhappy.'
A note, sent with the manuscript papers of Stephen Groombridge, to JH as President of the R.A.S.
Invites JH to dinner.
Thanks JH for a favor.