Describes the action of facial muscles at the onset of crying as observed by Langstaff.
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Describes the action of facial muscles at the onset of crying as observed by Langstaff.
On dentition of moles. On double teeth [see Variation 2: 391].
Difference in size of male and female Crustacea.
Thanks for sending Variation.
If CD is not convinced by his notes on sterility, ARW has little doubt that he is wrong. In fact he was only half-convinced by his own arguments.
Modifies his first proposition [a species varies occasionally in two directions, but owing to free inter-crossing the variations never increase] and further discusses the subject.
Encloses Berthold Seemann’s notes on flora of the Hawaiian Islands. Presence of European alpine species in Hawaiian volcanoes is a "hard nut" for geographical distribution [but see ARW’s Island life (1880), p. 323].
Difference between sexes of Ibis rubra; change in plumage.
Reports on Prof. Cornalia’s observations on the proportion of sexes in bees, and in healthy and sick silk moths, in nature and under domestication.
He never intended "A Lift for Darwin" as a serious title but as a way of arranging it. Lyell’s suggestion seems best to him: "Facts and Arguments For Darwin".
Notes the differences in seed production between cross- and self-fertilized flowers of Victoria regia.
Corrects errors of detail in Variation.
Thanks CD for copy of Variation.
CD’s work on pigeons demonstrates the close relationship between modifications in soft tissues and the hard parts, which are the only ones we possess in the fossil state.
Thanks for Casimir de Candolle’s paper ["Théorie de l’angle unique en phyllotaxie", Arch. Sci. Phys. & Nat. 23 (1865): 199–212].
Extract from Émile Blanchard’s Metamorphoses, moeurs et instincts des insectes [1868], on attraction of males by female Lepidoptera, and possible explanation.
Solicits CD’s support for the newly set up Royal Horticultural Society’s Scientific Committee.
Very pleased that he was put into CD’s book [Variation 1: 352].
Sends "hybridising pincers" of his own making.
Has some "vegetable caterpillars" from New Zealand and will be pleased to show them to CD if he is interested.
Gives details of the subjects on whom Langstaff made his observations on crying. Langstaff has not seen the platysma contract under chloroform.
Describes a curious litter of rabbits.
Pairing of rooks, courtship of golden pheasant.
Behaviour of finch hybrids.
Seasonal coloration of birds; bright plumage results from sexual selection.
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.