RECORD: Darwin, C. R. n.d. [Section of terraces of Guasco for South America]. CUL-DAR39.186. (John van Wyhe ed., 2002-. The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed and edited by John van Wyhe 2024. RN2

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volume CUL-DAR39 contains Geological notes on South America.

Draft or fair copy for South America, fig. 12, p. 45 "NORTH AND SOUTH SECTION ACROSS THE VALLEY OF GUASCO, AND OF A PLAIN NORTH OF IT". White wove paper, no watermark.

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(No. 10 12.)

C Cut out the block | Exact size | Omit shading | put dotted vertical lines from each letter | Omit each letter |

North [section and captions in black ink, later changes in pencil and brown ink] South

[in sketch:] North (B) (A) B C D E F E D C B A South

(B) gravel-plain north of valley of Guasco

Section north & south through the terrace-bounded valley of Guasco & of a plain northward of it.

A.A. Upper gravel-terrace

B.B.B. Gravel plain & second terrace.

C.D.E Third, fourth & fifth terraces.

F Bottom of valley & river, at the town of Ballenar.

[186v]

Shading?

Terminal line continuous & not broken?

Cut [away] for words north & south —

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Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)

File last updated 7 February, 2026