RECORD: Darwin, C. R. [4-5.1834]. [list of specimens, numbered 1948-1997]. CUL-DAR34.113-114. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Kees Rookmaaker, corrections by John van Wyhe 3.2011, corrections by Gordon Chancellor and John van Wyhe 2024. RN2
NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. This document, part of the largest scientific document composed by Darwin during the voyage of the Beagle, is written mostly in ink. Marginal notes are here integrated into the text. Watermarked "RYE MILL 1830". All in pencil.
Reproduced with the permission of the Syndics of Cambridge University Library and William Huxley Darwin.
See the introduction to the Geological Diary by Gordon Chancellor.
113
From mile or two up river & opposte ship
1948 – Fossil shells – small Arcæ excessively numerous
1949 – Fossil shells
1950 – Shell adhæring in ½ circle; & primary on a Voluta or large Buccinum, looking ribs of Cornu Ammonis
1951 Shells
1952–53 Voluta same as now living?
1954–5–6–7 – Buccinum
1959–1966 – Various shells
1967. In (1969) Bed in which shells are not common
1968 Shells.–
Facing the ship
1969 – Common pale earthy sandstone, containing veins of gypsum, & salt ([blank]): close above fossil shells but seldom containing them: it is generally not so fine or pure, but marked with ferruginous lines
1970 – Hard concretionary calcareo-[mesises] in the above
1971 – Calcareo-sandstone hard, often containing shells especially Venus in large concrete balls (externally dark rust red) in middle bed
There was a specimen of coarse agglutinated sand
113 verso
2001 — Mytilus on surface Santa Cruz — 350 plain
114
1972 Shells same as (1950)
1973 shel Arca
1974 Vitula. bed of river modern even yet retaining partly its color.–
Fossil wood found in bed of river & low plains (high up river) supposed to belong to gr. Oyster formation
1975 western. Curious if it should turn out of tropical character as proving a presumption such productions flourished in Lat 50° south
1976–1977 Wood
1978–1979 – Partly same specimen
1980 A superior surface of lava cellular (in many cases far more so)
1981 D common highly sonorous l. (with olivine) –
1982 B columnar (hexagon) l. (with olivine)
1983 B C calcareous matter filling up intervals of above l.
1984 G do with white crystals
1986 K do greyer, rather coarser with very many do crystals; summit of high land – April 29th [1834]
1987 M – do – cellular
1988 L Pale grey lava with few crystals – (often much laminated.) true (L) was thus: letter belonging to this lost:
1989 Q Dark heavy compact l. with grey spots
114 verso
x in jar Fine grained compact marl" exactly the same (1969) only tinge of green color O is same as (H)
1990 P Essentially same siliceo-aluminous fine grained substance as (1969) but of a green color
1991 R same as (1969) only more laminated & ferruginous
1992 H white aluminous substance (not effervesce) with minute extraneous particles – like mortar forming bands in such as (1969) sleeping place
1993 E Loosely agglutinated sand, with white & yellow bands beneath lava very common"
1994 Immense block – excessively numerous. May 1st [1834] –
x This feldspathic rock is generally less ferruginous & less porphyritic, often w sometimes without any crystal
1995 Imm.– &c &c – May 1st [1834]
Not always but frequently veined with quartz
Characteristic rocks of the Andes
1996 1997} Charact: specimens of 5 P. St. Julian pebble –
"fallstone G & Wood B"
More or less porphyritic
Doubtless common rock of Andes in that parallel.–Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 22 November, 2024