Gives details of the subjects on whom Langstaff made his observations on crying. Langstaff has not seen the platysma contract under chloroform.
Showing 41–60 of 61 items
The Charles Darwin Collection
The Darwin Correspondence Project is publishing letters written by and to the naturalist Charles Darwin (1809–1882). Complete transcripts of letters are being made available through the Project’s website (www.darwinproject.ac.uk) after publication in the ongoing print edition of The Correspondence of Charles Darwin (Cambridge University Press 1985–). Metadata and summaries of all known letters (c. 15,000) appear in Ɛpsilon, and the full texts of available letters can also be searched, with links to the full texts.
Gives details of the subjects on whom Langstaff made his observations on crying. Langstaff has not seen the platysma contract under chloroform.
Submits lists of insects [missing] for correspondent to check whether brightly coloured. Wants to determine whether there is any relation between bright colouring, whether in both sexes or one alone, and an unequal number of males and females.
Asks WED whether Langstaff could make some observations on certain facial muscles in expression.
In reading Variation, notices CD has not observed that after mallards have been domesticated their claws turn from black to white.
He and another Bencher of Lincoln’s Inn have signed the necessary certificates for admission of CD’s son [George].
About an American edition of Variation.
Instinct in birds; nest-building.
Inheritance of acquired characters.
Sends CD a copy of a book he has had printed mainly for the interest of his children and grandchildren [later published as Recollections of past life (1872)].
In addition to the drawing of a caterpillar which CD intends to use,
HWB sends information on differences of colour and pattern between the sexes of species of Papilio.
Argynnis diana and A. sagana have females that are brightly coloured, but these may be cases of protective mimicry.
Gives the evidence on which he relied for his view, which CD thinks is erroneous, of proportion of sexes in Lepidoptera.
Has studied Variation with interest.
Cannot quite follow CD on reversion and Pangenesis,
but is amazed at CD’s observations and method.
Comments on varieties of asses, kidney beans, and artichokes.
Charles Langstaff on action of muscles in crying. He believes the primary object of the contraction of the orbicularis is to protect the eye from blood.
Blushing on the body.
On proportion of sexes;
coloration of sexes in Lepidoptera.
Sexual attraction of female Saturnia carpini.
His opinion of Pangenesis.
On relative proportion of sexes in marine animals [sthg missing!?] Crustacea.
Sexual differences.
Music of Cicadae.
Thanks CD for gift of Variation.
GB sent copies of his Fisica del globo [1868] to Lyell and the presidents of British scientific societies but has received no acknowledgment; asks CD to check that they received the work. Could CD arrange for a notice of the book to appear in England?
In response to CD’s letter of 21 April, TE has forwarded the 67 clichés of the woodcuts from Fritz Müller’s work [Für Darwin (1864)]; acknowledges CD’s cheque for £3 6s. in payment.
Various topics related to sexual selection: sexual differences, sexual preferences, coloration.
Observations on root-climbers. Variegated and arborescent varieties of Hedera.
[CD’s notes are for his reply, 6165.]
Discusses Hildebrand
and criticises Delpino.
Asks to borrow C. K. Sprengel’s Entdeckte Geheimniss der Natur [1793].
Botanists have no explanation of the case of Viola odorata and other showy flowers being sterile while inconspicuous ones bear seed.
Starlings find new mates readily. Nesting in threes common.
Recognition of song by birds.