Is confused by French system of recording specific gravity and seeks GA's assistance; also GA and JH are named to a committee that JH thinks only wastes money.
Showing 21–40 of 168 items
Is confused by French system of recording specific gravity and seeks GA's assistance; also GA and JH are named to a committee that JH thinks only wastes money.
Complains further about French specific gravity designation [see JH's 1841-8-14 or earlier], and describes observing colored fringes on the edge of clouds.
Is fully occupied reducing Cape observations, and is producing a star list by magnitudes, resulting in some interesting anomalies.
Further comments on the Standards Commission Report [see GA's 1841-7-27].
No summary available.
A letter of introduction, asking GA to show the observatory to a Mr. Knipping from Hanover, a relative of JH's aunt Caroline.
Has passed on GA's note to Edward Sabine; cannot write more because his hand shakes too much, having just made a snow-man for the children.
Sends a letter from Humphrey Lloyd for GA's comments.
No summary available.
Thanks GA for his comments [see GA's 1842-1-18]; hopes that GA would be willing to have such statements, and other similar statements, made public.
Concerning Airy's papers recently submitted [see GA's 1842-1-5]. Hopes he will continue to send a report of his experiments and observations.
As many Russian observatories are now involved in magnetic observations, JH thinks the British observations should continue [see GA's 1842-1-22].
Thanks GA for exercising GA's usual discretion in the matter of the funding of Charles Babbage's calculating machine [see GA's 1842-9-26].
Arranging a visit for GA to Collingwood.
Final arrangements for GA's visit to JH [see GA's 1842-3-15].
Sends GA a spectrum photograph, and explains how JH obtained it.
Sends GA two more spectrum photographs [see JH's 1842-4-10], and believes that these may lead the way to color photography.
Asks GA's opinion as to whether Ordinance observatories should make their magnetic observations on a 3-minute or 5-minute system.
A note to accompany some letters being returned to GA.
Is organizing a committee to revise the instructions for observers at magnetic observatories; GA is on it.