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Needs help understanding Percades [?] quantity. Inquires as to well-being of family and sends regards.
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.
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.
Sends small lens. Its components neither parallel nor concentric; contains water. Suggests new polishing method. Estimates 4-foot lens would cost £7-£8. [JH Note: Tested and returned lens. Noted advantages and deficiencies and suggests improvements. Listed others who built similar lenses.]
Lens safely returned. Not aware of lenses in 1851 Exhibition or of C. F. Sturm's solid lenses. Notes advantages of plate glass. Offers to make three foot by three foot square lens. Recognizes limitations for use in astronomy; hopes for other applications.
Sending his completed universal alphabet with comments.
Thanks for the check. Will search for the deeds.