Lady [Pleasance] Smith conveyed Duke of Northumberland's interest in JH's color photographs. Encloses others, and explains use of light-sensitive juices of flowers to produce colors.
Lady [Pleasance] Smith conveyed Duke of Northumberland's interest in JH's color photographs. Encloses others, and explains use of light-sensitive juices of flowers to produce colors.
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.
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.
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.
On what is to happen at the expiration of a three year period assigned for the undertaking of certain magnetic observations.
Having heard that HP had expressed pleasure at some of JH's colored photographs, JH sends some more recent ones.
On the 'misfortunes & mishaps' of the Aden magnetic observatory and on the proper care of magnetical instruments.
Invites Mr. Wagner at Eton to bring his pupils to Slough to observe an occultation [of Jupiter by the moon?].
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.
Sorry that JH missed RJ at W. H. Fitton's. Offers proposal to modify property taxation procedures to yield 'taxation by payments downward' and to decrease load on poorer classes.
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.
Note on diurnal changes in [magnetic] variation at St. Helena and on estimated cost (£950) of observatory at St. Helena.
No summary available.
Discusses CD’s Glen Roy paper; would like to see the theory put beyond dispute. Tells of Mr Stables’ observations on the parallel roads. Discusses geological features of Scotland which he is sure are marine in origin.
Invitation to spend the night with him when he comes to town for the council meetings of the Royal and Astronomical Societies.
Has just returned from a trip to Hanover, and has decided not to place his son there in accordance with advice received while he was there. Met Miss Herschel. Travelled via Belgium and met A. H. Dumont, a very original and intelligent geologist.
No summary available.
Will be pleased to avail himself of the offer of a bed when the council meets. Will prepare a paper on Alpha Orionis for the Friday meeting. Can FB give him any ideas for the Anniversary address?
Affairs at the Cape; thinks Andries Stockenström is the man to be sent out to negotiate with the Boers. Would like JH's views on the subject.