RECORD: Darwin, C. R. 19.1.[1833]. Varieties of Trappean rocks. CUL-DAR39.120. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 8.2022. RN4
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. Watermarked 'RYE MILL 1830'. See: Paper types used by Darwin during the voyage of the Beagle.
[120]
19th
29
1029: 1030: 31: 32
Varieties of Trappean rocks occurring in NW end of Wollaston island (or 1s island)
1033 & 1034 do do containing very numerous veins & nodulus of opake quartz:
1035 ─ Conglomerate. (rather earthy variety
1036 red hard Scoria (abundant)
1037 Vesicular looking lava
1038 Amygdaloid with Lime: all these occur in a great bed of breccia alternating with the above Trappean rocks.
At 2d anchorage or central island of Wollaston island─
The rock is
1039: 1040: ─ 41: ─42.
Varieties 1039 most strongly showing the Breccia nature & 1042 when the rock is essentially crystalline &
[120v]
Feldspathic. ─ The intermediate numbers show intermediate status:
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 27 June, 2025