No summary available.
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Objections by Board of Visitors to proposed new railway tunnel near Greenwich observatory.
Doubts that JH put his approval on an article about shooting stars in the 'upper atmosphere' in The Intellectual Observer.
Sends his paper on "Willow-galls" [Proc. Entomol. Soc. Philadelphia 3 (1864): 543–644].
Lengthy criticism of Agassiz’s views on species as stated in his Essay on classification [1857].
Interested by CD’s trimorphism in Lythrum. Thinks some great mystery may lie in the fact that in some genera, some species are tri-, some di-, and some monomorphic, and in other genera, Apis, Vespa, Bombus, all the known species are dimorphic.
No summary available.
Requests JH sign R.S.L. certificate attesting to qualifications of H. E. L. Thuillier, AW's deputy in India. Hopes to see [JH's son] John when John returns from India.
Is sending an unpublished pamphlet on dioptric lights and would be glad of his opinions as he is claiming public recognition.
Took JH's box of specimens and had a discussion with William Logan, A. C. Ramsay, and some young surveyors, one of whom had examined JH's neighborhood. Similar rhomboids to the Irish ones have been located in Wales. Hopes to have a discussion on this subject later. Can JH give, or refer him to data, the temperature of celestial space without the sun? Returns the drawings with many thanks.
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Comments on why JH gave 239 degrees F as the temperature of space. Geological specimens may be given to the Geological Society or to the Jermyn Street Museum.
Requests a postponement of payment on a note for £100.
Asks for return of page about pigeon crossing.
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No summary available.
No summary available.
Thanks CD for his consideration in meeting his convenience respecting the payment of the £100.
Thanks for his letter regarding the dioptric lights. Gives his own views as to their importance.
Thanks for kind information regarding Christopher Hansteen. Will obtain a copy of the Admiralty Manual to read JH's paper on meteorology.
Admires Origin, but CD does not consider hereditary law of use and disuse.