No summary available.
No summary available.
Remarks on upcoming lecture of JH's son [Alexander], and on glacial movement.
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.
Thanks Academy on his election as a Corresponding Member.
RT has sent his observations on orchids to CD. Has found only one case of an insect with a pollinium adhering to it.
Reports the observations of Hermann Crüger and John Scott that fruit is set by orchids whose flowers never open and that pollen-tubes are emitted from pollen-masses still in their proper position. These cases convince CD that in Orchids he underestimated the power of tropical orchids to produce seed without insect aid but he is not shaken in his belief that the structure of the flowers is mainly related to insect agency.
No summary available.
No summary available.
Lyell’s Antiquity of man lacks originality.
Statements in Lyell provoke CD to determine exact publication date of Origin and JDH’s introductory essay [to Flora Tasmaniae].
CD now believes in repeated periods of global cooling and migration.
His better opinion [of work of Boucher de Perthes].
Explains his position on CL’s treatment of species.
Mentions positive response to his ideas on the part of a German professor [Ernst Haeckel], Alphonse de Candolle, and a botanical palaeontologist [Gaston de Saporta].
Notes negative reaction of entomologists.
Mentions Falconer’s objections [to Antiquity].
Mentions work of Hooker.
Comments on paper by Owen ["On the aye-aye", Rep. BAAS 32 (1862) pt 2: 114–16]
and CD’s review of Bates’s paper [Collected papers 2: 87–92].
Thinks Natural History Review is excellent.
No summary available.
No summary available.
No summary available.
Bee species of different sizes build cells the same size.
Thanks for the artificial comb.
No summary available.
No summary available.
Sends an extract from J. J. Lalande's article on planets from the Encyclopédie méthodique. Sends two of his own theorems.
Discusses the meaning of C. K. Sprengel’s term "dichogamy". Dichogamous plants are functionally monoecious; Primula is functionally dioecious.
Reports Hermann Crüger’s observations of Cattleya and of bees pollinating Catasetum. Crüger will observe Melastomataceae.
Has built a hothouse.
Fears Amsinckia cannot be dimorphic.
Ill health slows his work on Variation.
Thanks for his opinion; it will save him from exposure, but it is too late to get the book altered. Comments on some parts of JH's book on meteorology. The atmosphere appears to be smaller in extent than John Dalton conceived.