Voting to elect JL [a member of Athenaeum].
Voting to elect JL [a member of Athenaeum].
Thinking about HF’s paper on Plagiaulax [Q. J. Geol. Soc. Lond. 13 (1857): 261–82]. Owen might answer that all Purbeck mammals are marsupials.
Asks RP’s help in procuring a specimen of a real Irish rabbit, L. veomicule [Lepus vermicula]?.
Separation of sexes in trees [U. S.].
Do plants offer positive evidence for "continuous land" theory?
Protean genera.
Urges AG to generalise from his observations on the flora of the northern U. S.
Expected to find separation of sexes in trees because he believes all living beings require an occasional cross, and none is perpetually self-fertilising. The multitude of flowers of a tree would be an obstacle to cross-fertilisation unless the sexes tended to be separate.
The Leguminosae are CD’s greatest opposers; he cannot find that garden varieties ever cross. Could AG inquire of intelligent nurserymen on the subject?
Thanks AG for information on protean genera; much wants to know whether their great variability is due to their conditions of existence or is innate in them at all times and places.
No summary available.
Would rather not serve on Royal Society committee [for a North American exploring expedition]. Suggests subjects for geological investigation.
Ranges of species in large vs small genera: Asa Gray’s compilation fits CD’s expectation.
CD studies seedling mortality in his weed garden.
JDH’s work on Indian flora.