No summary available.
No summary available.
Finds there is not one of JH's actinometers at Kew; would be grateful if he could inform him who has been working with one.
Thanks for the information. Has written to Henry Barrow, and to Negretti and Zambra. The latter can supply actinometers for 14 guineas; too expensive for him. Barrow has just replied that he can supply for 6 guineas.
Letter did not reach him as he had left town for Clifton. Hopes to reach town in time to see JH's son [John] before he leaves. Unable to meet him at Greenwich as he had to return with [Andrew S.] Waugh.
Sends the appendix to the volume being printed and hopes he can quote the extract from JH's letter. Comments on James Croll's theories. Points out a mistake in the report from the Morning Post.
Have made several of JH's actinometers but have always experienced difficulty with the fluid, ammonia sulphate of copper. Can some other fluid be used? They are now making two actinometers for a foreign observatory and would like to make them as accurate as possible.
Received JH's translation, which is better than any blank verse can do. Invites JH to visit Lyells.
R.S.L. Council has decided to publish correspondence regarding the Melbourne telescope. Sends early pages for JH's corrections.
Has begun to write about science again after a long absence. Intended to revise small part of her On the Connexion of the Physical Sciences, but it became quite long. Wants JH's advice on it.
Thanks for article by JH's son Alexander Herschel on meteors. Has printed it in Bulletin of the academy.
Gives permission to reprint letters to Athenaeum on standard of length, in light of recent bill to metricize. Requests as many copies as possible.
Discusses dispersal of copies of letter against adoption of 'French metre' [see JH's 1863-6-4].
Asks whether JT can reprint JH's letters on the British modular standard of length, which letters were published in the Athenaeum.
Suggests JH send copies of JH's letters from the Athenaeum to members of Parliament because JH has more influence than JT.
Will send as many copies as possible of JT's reprinting of JH's letters to the Athenaeum. Asks if JH has seen Thomas Rawson Birks's book on matter and ether.
Is working on the correction of calculation errors [see JH's 1863-5-31]; GA and his assistants will deal with the problem of proofreading.
Comments on GA's activity in correcting the calculation errors [see GA's 1863-6-2].
Correcting work is gradually drawing to a close [see JH's 1863-6-4].
New invention for measuring barometrical variations on an increased scale.
Hopes that JH will be able to visit Newcastle.