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.
Asks to borrow Philosophical Transactions, vol. 157, pt 2 (1868).
Answers a number of queries from Lyell concerning geography and geology of Chiloé Island and its relationship to the Cordilleras.
Asks about "perched rocks" on Jura and notes their relevance to Louis Agassiz’s theory. Discusses Agassiz’s view on Jura.
Mentions seeing Robert Brown.
Notes R. I. Murchison’s discovery of shells in central England.
Weakness of negative evidence.
Discusses the role of ice in determining the geological features of the Jura. Mentions view of Agassiz. Objects to idea of "a [sea of ice] carrying rocks". Notes Agassiz’s earlier view of "ice expanded in the line of the Great Swiss Valley". Comments on Pentlands.
Defends his theory [in "Parallel roads of Glen Roy" (1839), Collected papers 1: 87–137] against the view that the "roads" were formed by glacial action.
Discusses at length Louis Agassiz’s book [Études sur les glaciers (1840)] and Agassiz’s explanation of moraines. Defends his own theory of the importance of floating ice. Relates glacier theory to his own interpretation of Glen Roy.
Mentions a paper he is writing on South American boulders and till [Collected papers 1: 145–63].
Takes "much to heart" solar evidence for short age of the earth. Cites evidence for "long endurance of our existing continents". Comments on process of denudation.
Discusses various types of coral reefs on which he has been collecting notes. Views of C. G. Ehrenberg. His conception of the formation of Bermuda.
Pessimistic about the effect of his poor health on his scientific work.
The second volume of Lyell’s [Principles, 10th ed.] gives a "fair history of the progress of opinion on Species".
Pleased by allusion to Pangenesis: "an untried hypothesis is always dangerous ground".
Looks forward to chapter on domestication and on man.
Discusses relationship of subsidence to the formation of coral reefs.
Comments favourably, though often differing, on articles by G. H. Lewes.
Discusses claim of Agassiz [in A journey in Brazil (1868)] that he found evidence of glaciers in Brazil. Suggests sponsoring an expedition to test these claims.
Discusses growth of various species of coral. Explains significance of dead reefs.
Describes meeting of the Council of the Geological Society; the controversy involving Edward Charlesworth.
Mentions conversations with William Lonsdale about Lonsdale’s work on corals and the financial support for his work.
Murchison’s views on glaciation in Wales.
Agassiz’s observations at Glen Roy.
Believes "absurd letter" hastily read at last Geological Society Council meeting was from Charlesworth’s solicitor. Suggests that it may have been sent to entrap the Council and that it should be read over carefully.
Discusses views of Wallace, H. N. Moseley, and Croll on the mechanics of glacier movement.
Comments on Wallace’s new book [The Malay Archipelago (1869)].
Discusses wear and tear due to glaciation and significance of this evidence for dating the glacial period. Mentions views of James Croll and Archibald Geikie on the issue.
Asks for a photograph of CL to be used by a society [in Serbia].
Comments on article by Wallace ["Sir Charles Lyell on geological climates and the Origin", Q. Rev. 126 (1869): 359–94].
Has finished new edition of Origin [5th (1869)]
and is back at work on sexual selection [Descent].
Cites article by David Forbes dealing with the geology of the S. American Cordillera ["Geology of Bolivia and South Peru", Q. J. Geol. Soc. Lond. 17 (1861): 7–62].
Discusses the flexures of the Cordillera, the age of the mountains, and basaltic dikes in granite areas.
Mentions expected birth of child [Henrietta Emma].
BAAS meeting.
Comments on letters from G. R. Waterhouse and William Lonsdale.
Describes survival of apparently "fossil" seeds sent by W. Kemp.
Is at work on MS [of Volcanic islands].