RECORD: Darwin, C. R. n.d. Abstract of Spix, J. P. von and Martius, C. F. Phil von, Travels in South America, during the years 1819-20-21, etc. CUL-DAR42.83-84. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 1.2022. RN1

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-DAR42 contains notes for Darwin's book South America (1846).

Spix, J. P. von and Martius, C. F. Phil von. 1824. Travels in Brazil, in the years 1817-1820. 2 vols. London.

http://darwin-online.org.uk/content/frameset?itemID=A560


[83]

(Map) E27N. W27S ENE. & WSW

Serra dos Orgaos – [illeg] NE by E & SW by W

Near Rio this same line E27N by W27S common to coast

[Whereas] linear Isld ryds which forms the inland bay

Coast line south of Rio W. 12 S

(Serro da Mantequeira about parallel to dos Orgaos – N boundary of R Paraiba

Vol II P136

at Córrego dos Pinheiros – at fort of Serra Branca Elastic Slate, Mica Slate formation runs in hour three N 45 E - ∠º 60-70.

3 mountain ridges – Capivary Ingahy & Branca parallel rising SSW-SWS -NNE-NE (23-45)

But which are at ∠ to main chain of the Minas – Mantequeira, NW & SE! – V some good map. South of St  Joâo del Ray (154)

NE = 3 hours

North of do – Serra do S. Josè SW & NE north of S. Josè, granite & talc-Mica Slate NE & SW P. 156

Further on north of Morro de Solidade Talcaceous Slate SE & NW He says different, appear same age as V. Rica (as at M. Video)

[83v]

P289 Vol 1) Short way N South of N – seemed chain of mountain cleavage NE SW hours 3-4

(NW & SE) Whereas many hills & Cleavage coincide viz NE & SW

nearly same --- (Mr Caldcleugh) ---  or NE & SW

Transition from Gneiss – Mica Slate. direction hour 3

Travelling SW cross 3d mountain chain P291 on borders of Rio from St Paulo – veins of red Iron-stone running N 30 W (∴ probably chain transverse to Cleavage – this line lofty like that of Rio de Jan

"Slaty clay iron-stone, on gneiss in strata" when Direct? N (45-60)E [illeg]

Serra do Mantequeira – at this point namely W & NE in Map – No forms North boundary of river Paraiba

I see whole country South of Rio (& indeed the mines) as covered with Ferruginous auriferous Sandstone – stratified with layer of Clay probably recent

[84]

3) Vol II P158

3 league NNE (18 degree) Serra del Doro-Branco higher & steeper taking direction ESE & WNW & Cleavage

These laminated quartzon ferruginous & mica slate rocks must be similar to those of [illeg] at Maldonado

There appears to be Clay Slate & Chlorite Slate, these mountains of (P185)

V. Rica, runs from W & E – mountain ∠ vary Caldcleugh

Cleavage NE-SW – incline to SE 50º-70º flat topped ridges – general P270

Itacolumi cleavage near hour 7 E 15 S

Serra do Carãca (P280) Iron Mica Slate hour 22º - N 30 W! – an irregularity

Villa Rica "Chain has caused irregularity of R. de Janeiro - Mem

[84v]

I have gone on supposition North 0 hours & 24 hours – country to East


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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 25 September, 2022