Variability of certain features within insect genera.
Variability of certain features within insect genera.
Discusses arthropod structure and the nature of the corium.
Discusses shipment of skins of carrier pigeons.
Has received nine skins from Walter Elliot of Madras; WBT may describe them if he wishes.
Expects some Persian fowls.
Can WBT inquire about the fertility of certain duck hybrids?
Outlines the ranges of northern U. S. species common to Europe. Hopes to investigate the resemblances between the floras of the north-eastern U. S. and western Europe. Discusses routes by which alpine plants appear to have reached U. S.
JDH approves MS section on geographical distribution.
Never felt so shaky about species before.
His objections to some mechanisms of distribution that CD proposes.
Illnesses of Mrs Horner and Emma Darwin.
Death of Sarah Elizabeth Wedgwood.
Mentions work on his "Big Book" [Natural selection].
Remarks on J. A. H. de Bosquet’s discovery of a Chthamalus in the Chalk.
Greatly interested in CD’s experiments with seeds in salt water [see "Action of sea-water on seeds", Collected papers 1: 264–73]. Believes CD exaggerates the force of the objection, against migration, that seeds tend to sink.
CD relieved by JDH’s positive response to his MS.
CD continues observations on means of transport.
JDH’s Raoul Island paper [J. Linn. Soc. Lond. (Bot.) 22 (1857): 133–41], showing continuity of vegetation with New Zealand, best evidence yet of continental extension.
Describes the funeral of Aunt Sarah [Elizabeth Wedgwood].
Believes he can give CD information on Mammalia of St Thomas [São Tomé, Gulf of Guinea]. Quotes from a Portuguese history of the islands on unique species of monkeys and civet cats found there.
CD finds JDH’s objections to a mundane cold period significant, and he endeavours to show how they do not rule out mutability.
He is writing on crossing.
JDH not happy with CD’s explanation of the absence of north temperate forms in the Southern Hemisphere, given his explanation for the spread of sub-arctic forms to the south. [CD’s note is in response to JDH’s criticism.]
Mr Hardy, CD’s tenant at Beesby, has spent £105 on improvements to the farm. JH suggests different ways of recompensing the tenant, and asks for CD’s decision.
Asks JM for four copies of his Journal of researches [2d ed.] at wholesale price. Also asks for total number of copies sold.
Defers a visit with Lieutenant Blakiston; "my wife is out of health & expects her confinement in a few weeks, & I cannot possibly receive any one here or leave home . . ."
CD encloses letter from Asa Gray, although it is critical of JDH.
Role of struggle in forming species in retreat from advancing glaciers.
Obliged for JWL’s note [missing]. Will forward it to Mr Wedgwood.
Remarks, "it was … blunder of A. Woods about your wanting the Furniture."
Is very glad to hear of the increased rent. Prefers lien agreement with tenant, Mr Hardy.
Emma’s illness prevents his attending Philoperisteron [pigeon fanciers’ club].
Expects larger collection of skins from West Africa.