No summary available.
No summary available.
No summary available.
Would be inclined to try a combination of cryolite and silex to obtain a glass. Comments on his process for decomposing alumina by cyanide of sodium. Sorry to see that FK uses the current forms of chemical notation.
No summary available.
He is steadily and very hard at work on "Variation" [Natural selection] and finds the whole subject "deeply interesting but horribly perplexed".
Has done New Zealand flora calculations. Results support CD’s theory of necessity of crossing. Trees tend to have separate sexes.
Agassiz has informed him that the mice and rats of Mammoth Cave are American in type.
Alludes to CD’s doubt of the principle that "progress of life on the globe is parallel with the development in different tribes". Outlines his own ideas on the "unfolding of the type-idea" and its "parallelism with the law of development in the embryo".
No summary available.
Thanks her for kindness. Announces, "We have now half-a-dozen Boys" [Charles Waring Darwin, born 6 Dec].
Grateful for Siebold’s wonderful facts [C. T. E. von Siebold, On a true parthenogenesis in moths and bees (1856), trans. by W. S. Dallas (1857)].
Vitality of spermatozoa.
Hybridisation of bees. Bees are in one respect his greatest theoretical difficulty.
CD still convinced about the relation of cement receptacles and ovarian tubes [in Crustacea].
Birth of C. W. Darwin.
No summary available.
Writes of arrangements for the end of the school-term.
Condition of Emma and the new baby [C. W. Darwin].
CD is convinced of relation between separation of sexes and tree-habit.
Recent hard blows against crossing theory.
CD long tormented by land molluscs on oceanic islands; found transport possible experimentally.
Arrival of letters from home; birth of first niece or nephew; expense of Sims's rent and financial burden to his mother; departure for Aru in two days time; diet on Aru, list of food stores to be taken, scarcity of fowl, will eat Birds of Paradise and Kangaroo; friends and family; Eliza Roberts's moustache.
Letter of introduction for the Drs. Hermann and Robert Schlagentweit, whose scientific interests parallel JF's.
Informs CD that the "dishonest mollusks" were collected in May 1855 in Porto Santo. Describes some Madeira species. Though believing in "species" more and more, these may be "mere insular modifications".
Pleased by what THH says on cement glands and organs in higher Crustacea. Content to be moderately right.
Hopes THH will dissect the Conchoderma.
Asks for cases of organs in which there is no apparent transition from other organs or in which transition can be shown in an unexpected way and for instances of odd and inexplicable connections between parts, such that if one part varies the other varies also.
Congratulations on the success of his son at Addiscombe.
Forwards the draft of the words of the Memorial to be presented to Her Majesty. Nonmembers of the League have signed. On receipt of JH's reply will forward the written headings for JH's signature.
No summary available.