Comments on a discussion of humming-birds by the Duke of Argyll [in The reign of law (1867)].
Encloses article by Henry Parker on the Duke’s book [Saturday Rev. 23 (1867): 82–4].
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Comments on a discussion of humming-birds by the Duke of Argyll [in The reign of law (1867)].
Encloses article by Henry Parker on the Duke’s book [Saturday Rev. 23 (1867): 82–4].
Discusses hybridisation in cowslip and primrose.
Mentions proposed visit.
CD probably advised omitting mention of experiments suggesting that oxlips, cowslips, and primroses could be produced from the seed of a single plant
Chapter 12 [of Variation] finished;
too late to include information on six-fingered men. Plans for book on man [Descent].
Mentions coral reefs of Tahiti.
Discusses volcanic islands; volcanoes of the Cordillera.
Thanks CL for comments [on Variation].
Thinks Pangenesis would be important step in biology if admitted as probable.
Introduction to French edition [of Origin] has injured the book.
Replies to CL’s further comments [on Variation].
Discusses direct action of the environment as a cause of variation.
Describes seeds transported in locust dung. Discusses other cases of transport and migration.
Discusses transport of frog spawn and young molluscs by birds.