The red notebook of Charles Darwin / edited, with an introduction and notes by Sandra Herbert.

  • Charles Darwin
Date:
1980
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Licence: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

Credit: The red notebook of Charles Darwin / edited, with an introduction and notes by Sandra Herbert. Source: Wellcome Collection.

    52/184 (page 38)
    38 SANDRA HERBERT Alumen. — This matter | 29 accumulating in deep seas forms slates : How is the Lime separated ; is it washed from the solid rock by the actions of Springs or more probably by some unknown Volcanic process? How does it come that all Lime is not accumulated in the Tropical oceans detained by Organic powers. We know | 30 the waters of the ocean all are mingled. These reflections might be introduced either in note in Coral Paper or hypothetical origin of some sandstones, as in Australia. — Have Limestones all been dissolved, if so sea would separate them from indissoluble rocks Has Chalk | 31 ever been dissolved ? Singularity of fresh water at Iquiqui. not from rain, because alluvium saline ; Mem : on coast of Northern Chili as springs become rarer, so does the rain, therefore such rain is cause, hence at least no water is absorbed into the earth <(I did not see one dike in the whole Galapagos Arch; because no sections, same cause as no [[colour | 32 Sir J. Herschels idea of escape of Heat prevented by sedi¬ mentary rocks, & hence Volcanic action, contradicted by Cordillera, where that action commenced before any great accumulation of such matter. — D'' A. Smith says, that Boulders do not occur in the South African plains. — Sydney no | 33e I believe the secondary? formations of Brazil, all originate from the decomposition of Granitic rocks Mem. Chanticleers voyage at <(U?] QMaranh?^) Fernambuco. [[the following is a newspaper clipping pasted on the page EARTHQUAKE AT SEA. — Extract from the log-book of the James Cruikshank, Captain John Young, on her voyage from Demerara to London: — Feb. 12, 1835. At lOh. 15m. a severe shock of earthquake shook the ship in a most violent manner. Although it lasted about a minute, there was no uncommon ripple