Discusses crossed varieties of sheep and ducks.
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Discusses crossed varieties of sheep and ducks.
JDH battling with Lyell over treatment of species question in Antiquity of man. Distressed by Lyell’s raising false priority issue between JDH and CD. Falconer involved in a priority squabble.
Lyell has received compliments for letting readers draw own inferences [on species question]. Now feels he earlier did Lamarck injustice. [CD’s] substitution of variety-making power for volition [as in Lamarck] in some respects only a change of names.
Thinks Huxley taking on too many responsibilities.
Sends two [unidentified] papers on inheritance of medical malformations. Suggests that besides the inheritance of specific variations, the tendency to show variations in the same organ system (stomach, nervous, etc.) may also be inherited.
RT has sent his observations on orchids to CD. Has found only one case of an insect with a pollinium adhering to it.
Bee species of different sizes build cells the same size.
Sends tuber of Chilean wild potato, requested through Hooker and P. L. Sclater.
Plans to exhibit a bird’s foot with a large ball of clay attached. This phenomenon supports CD on seed dispersal.
Thanks for CD’s answers on Passiflora
and Asa Gray review.
Has observed gradation of sterility in Oncidium species.
Has observed rostellar germination and fertilisation in Laelia. The latter was prevented in Bletia by covering the stigma with plaster of Paris.
Gongora atropurpurea capsules are swelling.
Discusses the Duke of Argyll’s article on the supernatural [Edinburgh Rev. 116 (1862): 378–97].
Has heard that the Incas married their sisters; this may be worth investigating as a case of inbreeding.
Has been looking at separation of sexes in poplars.
Interested in reversion.
Does not understand all CD said on inheritance.
JDH now remembers that Origin was "published" some time before it was "distributed" and therefore appeared prior to his own essay [see also 2478].
Impossible to say whether some Dipterocarpaceae survived a cold period or have developed since.
Charles Martins of Montpellier will collect the varieties of silkworm for CD.
QdeB is battling with the polygenists in the Société d’Anthropologie.
Discusses the female parts of the Primula flower; the true character of the free placenta is not completely understood.
Wants to know when he may visit CD.
Sends some specimens for CD.
Is busy with W. African Amomum, whose floral structure he discusses.
Continues to support, in debates at the Société d’Anthropologie, the view that variability of animals and anatomical modifications are produced by environment. Wishes to use CD’s niata cattle example from Journal of researches [2d ed., pp. 145–6].
Evidence of tropical floras continuous since Tertiary cannot fit CD’s position on intermittent cold periods.
Agrees with CD on reversion and latency.
Owen is the author of the Athenæum article [28 Mar 1863, pp. 417–19]. JDH dismisses it as vulgar rubbish. W. B. Carpenter intends to write a reply.
Encloses strawberry blossoms used in his crossing experiments.
Studying self-sterility, particularly in Oncidium, where abortion occurs consistently but stigma functions normally. His hybrid orchid crosses show sterility occurs capriciously. Thus it is not a "special endowment".
Disputes Asa Gray’s and Hermann Crüger’s view of rostellar germination.
Doubts absolute sterility of Catasetum.
Disappointed by results with homomorphic cowslips.
Sends CD seeds of Cattleya crispa as requested [see Collected papers 2: 77–8].
Anticipates success for his attempts to cross orchids artificially. Has not had a single seed germinate from a pod that was not produced by artificial crossing.