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Needs help understanding Percades [?] quantity. Inquires as to well-being of family and sends regards.
A number of options are proposed by JH to help GA solve his problem with the mercury level [see GA's 1856-4-14]; JH is feeling much better but fears he may 'never again be able to walk.'
Has no actinometers available [see GA's 1856-4-23], but tells GA where he can get one; rhapsodizes about the beauty of nature around him, and the silliness of a person.
Requesting advice on his reflex zenith tube. Regarding progress on 'Standards.'
Wants one or more of JH's actinometers. Notes his suggestion about the zenith tube.
Regarding experiments on the Mohamet's coffin theory. His son Wilfrid has won a scholarship at Trinity College, Cambridge.
[Reply to GA's [1856-4-6 or earlier] on Mohamet's coffin theory.] Congratulations on GA's son winning a scholarship. JH's health is better, but he cannot walk yet.
Is considering becoming a candidate for the position of Registrar at London University and would welcome support from JH.
Application for the position of Registrar at [London] University.
Is grateful for JH's support for his application as Registrar. Encloses a copy of his application. Gives details of a binocular microscope he has received from Paris.
Heard JH not well. Offers him 'a nosegay, gathered from [JH's] own garden of the Differences of the Powers of Zero.' More notes on the self-repeating series. Developed two equations that HW may submit to Cambridge [Philosophical] Society.