Is upset by what has happened [see 1017], but does not know how CD’s note reached Grey.
Thanks for reading paper. Accepts CD’s criticisms; discussion of some points.
Concerning the purchase of shares.
Notes on part of CD’s species sketch.
Will come to 7 Park St. on Wednesday for a palaver on distribution, species mutability, migration, etc.
[Extract of letter to WJH from T. E. Cantor] on zoological distribution in the Malay Peninsula.
JDH’s aunt cannot find lodgings for CD.
Similarities between floras of Tierra del Fuego, Van Diemen’s Land, and New Zealand; does not feel migration sufficient explanation.
Supposition that glaciers made Glen Roy is a dream. Has received three letters from CD on river terraces. Reports on trip to terraces at Belleville. Comparison with Glen Roy.
[Valediction only.] CD note on verso: Athenaeum/48/p. 839 "E. Forbes on genera being continuous in time––good––fact".
Discusses CD’s Glen Roy paper; would like to see the theory put beyond dispute. Tells of Mr Stables’ observations on the parallel roads. Discusses geological features of Scotland which he is sure are marine in origin.
Though correspondence has never ebbed so low, CD is constantly in his thoughts.
Observations on cheetahs used as domesticated hunting animals.
Finds geographical barriers sometimes separate species, but also finds species that remain separate where there are no barriers to migration.
Colour "individuates" isolated animal species.
Plains and alpine animal distribution show altitude not strictly analogous to latitude.
Impact of timber cutting on climate has led to extinction of crocodiles.
Will discuss coal formation in letter to Edward Forbes.
CD often asked whether isolated mountains in southern latitudes had closely allied representatives of Arctic and north temperate plants; JDH has found a representative barberry.
Making for Darjeeling via Calcutta.
Agrees to pay Mr Mason as requested.
Will forward recommendation of Edward Cresy to Edwin Chadwick, but thinks there will be no further need of engineers.
Brian Hodgson reading CD’s Journal of researches with delight.
Forwarding breeding pamphlets.
JDH recommends P. S. Pallas on degeneration.
CD’s facts on sex in barnacles startling.
Hugh Falconer’s health.
Is sorry that any person has misunderstood his intentions. JEG read his papers on cirripedes at the Zoological Society without intending to interfere with CD’s work; he merely wished to record his old observations, made before CD commenced his study, and thought that by so doing he was helping CD. [See "Description of a new species of Anatifa" and "On Thaliella", Proc. Zool. Soc. Lond. (1848): 44.]
Concerning the measurements of Balanus specimens with respect to growth.
Hugh Falconer’s misbehaviour.
Waiting out rains at Brian Hodgson’s.
Will make botanical transverse section of Himalayas from plains to snow.
Arrangements to pass Sikkim Rajah’s territory.
No evidence of glacial or diluvial action in sub-Himalayan mountains. No evidence of detrital coal formation.
Hodgson’s replies to CD on introduced species and hybrids.
Gives details of the illness of R. W. Darwin.
Informs CD of the death of their father and the funeral arrangements.
Responds to CD’s two objections to the principles involved in the "Rules of zoological nomenclature": (1) that strict enforcement of the rule of priority would cause much inconvenience, and (2) attaching name of the first describer in perpetuity puts a premium on careless description by "species mongers".