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The terraces in Valleys of Chili may be with much truth compared to the step = formed streams of lava at St Jago. C. de Verds

Quartz pebbles in the Cordilleras look as if some peaks elevated.

Greywacke as a general fact absent in T. del Fuego, excepting in Port Famine

Mr Sorrell says that numerous icebergs are commonly stranded on shores of Georgia Lat° ( ), he has rocks on surface, applicable to Patagonia.

[Darwin cited Sorrell in Journal and Remarks, 1839, p. 282: "Mr. Sorrell, the boatswain of the Beagle, who has long been accustomed to these seas, informs me, that at this season he has seen small icebergs, with mud and gravel on them, floating from the shores." and footnote: "Mr. Sorrell says, that he once saw an iceberg to the eastward of South Shetland, with a considerable block of rock lying on it."]

 

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During a period of subsidence the shinglle of Patagonia would become more or less interstratified with sediment & escarpment worn away like english escarpment

The great conglomerate of the Amazons & Orinoco mentioned by Humboldt under name of Rothe-todte-liegende is perhaps same with that of Pernambuco?

Quote Miers about shells at Quillota

Lyell, states that contact of Granite & sedimentary rocks, in Alps becomes metalliferous. Vol III