Scope and Contents This correspondence is bound together, into one volume. The contents are individually summarised by Lyell as: 1) Passages in his paper on Transmutation and mimetac [sic mimetic] species 2) Equatorial snowy mountains 3) Glacier of Amazons of Agassiz Chilean insects 4) Insects of Chiles 5) Amazon and [? Obydo] beds, laminated clay 6) Marine univalves on the Amazon alllied to Fuscus 7) Delta of Amazon 8) Peopling of islands Tahiti etc. No endemic...