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Congratulates him on his discovery of the parallax of Alpha Centauri. Comments on this and makes suggestions for further examination.
Declines to review WC's recent work, and then JH justifies his position for the rest of the letter.
On RM's stepping down as president of Geological Society. Where exactly abroad will RM pursue enquiries?
Discusses how exceptional observations of meteorological and magnetical phenomena should be recorded and what significance should be attached to them. Cannot attend next meeting of committee.
Is confident that by summer his sweeps will all be reduced and arranged in three catalogs for JH's Cape Results.
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].
Has been ill for two months. Will be visited by Dr. Andrew Smith shortly. Hopes TF can come to Collingwood to meet Smith.
Asks about partially white leaves and about droplets of water forming at the tops of leaves. Has been studying the effects of spectral rays on vegetable colorings.