RECORD: Gordon Chancellor and John van Wyhe eds. Cape de Verds notebook. [English Heritage 88202324]. (Darwin Online, http://darwin-online.org.uk/)
REVISION HISTORY: Transcribed by Gordon Chancellor, transcription typed and checked against microfilm by Kees Rookmaaker 7-8.2006, corrections by Chancellor, updated by Rookmaaker 11.2006, edited and corrected against colour photographs by John van Wyhe 5.2007, checked against the manuscript 4.2008. Transcription revised and edited by van Wyhe. RN14
The Beagle field notebooks are also published in:
Gordon Chancellor and John van Wyhe eds. with the assistance of Kees Rookmaaker. 2009. Charles Darwin's notebooks from the voyage of the Beagle. [Foreword by Richard Darwin Keynes]. Cambridge: Cambridge University Press.
NOTE: This 12.5 x 8 cm notebook is bound in red leather with the border blind embossed: the hinge to the brass clasp is missing. The front of the notebook has a label of cream-coloured paper (6.8 x 4.0 cm) with 'Cape de Verds Fernando Noronha Bahia Abrolhos Rio de Janeiro City' written in ink. The notebook is 112 pages long. Entries are written in two sequences, one from the front cover (pp. 1a-27a), the second from the back cover (pp. 1b-85b).
Editorial symbols used in the transcription:
[some text] 'some text' is an editorial insertion
[some text] 'some text' is the conjectured reading of an ambiguous word or passage
[some text] 'some text' is a description of a word or passage that cannot be transcribed
< > word(s) destroyed
<some text> 'some text' is a description of a destroyed word or passage
Text in small red font is a hyperlink or notes added by the editors.
Reproduced with the permission of English Heritage (Darwin Collection at Down House) and William Huxley Darwin.
General introduction to the Beagle Field Notebooks.
Chronological register to the notebooks
Introduction to the Cape de Verds notebook
Cape de Verds
Rio de Janeiro City
26 — 20
63 - 20 60 — 30
26 - 30
[Several calculations, almost illegible, on calculating the height of a Baobab tree]
= + + -
BC : CA : : r : t Ð b
11, 95 4 2 4
10. 30 2 5
1. 65 19 0 1
45 39 14 28
[right angled triangle for calculating height of Baobab tree]
[possible sketch of a coastline or mountain range]
Tops of prickles scarlet red & other parts tile red1
Don Manuel Rodriguez
y da Silva Ponseca
1 Asterias, specimen not in spirits 140 in Zoology notes, p. 370.
[geological sketch section of cliff]
S top of cliff Feldspathic1 rock Feldspar2 Crystalline decompose rock sea coral3 N
1 Containing noticeably abundant quantities of feldspar minerals.
2 Name given to a group of very common silicate minerals usually whitish in colour occurring in crystals or crystalline masses.
3 Marine invertebrate animal with radial symmetry, often in colonies called reefs.
Baobab1 6 ¾
high ½ strap Strap
shadow 9 & per 0 ½ 12
base 90 feet 26° ½ 12 ½
90 from trees first position
1 The Adansonia tree of Africa.
[drawing of Baobab tree by FitzRoy?]
⅔ ft 8in 36.3
Cliff 42 feet Sand 28.3
[mathematical sketch of triangle] A B C D
A B C 180 12 30 77 - 30
= + + -
BC : CA : : r : + ∠ B
n 45 Diam 13 Circum 2 feet from the ground 35 [feet]
13| 45.0 (3.4
12, 2 5 5 2 7
10, 6 5 4 2 4
2, 6 0 1 0 3
45 feet high
Lobularia1 coating 15 & intermediate 15
Brick in modern Breccia2
Fistularia3 squirt white threads from anus.
Cavolina long horns4
1 Lobularia or dead men’s fingers is a soft coral of order Alcyonacea. See Zoology notes, p. xvi
2 A composite rock consisting of angular fragments of stone, etc., cemented together by some matrix such as lime: sometimes opposed to conglomerate in which the fragments are rounded or water-worn.
3 An echinoderm of order Apodida, specimen 61 in Zoology notes, p. 12.
4 An aeolidacean nudibranch, specimen 56 in Zoology notes, p. 11.
= 4th Hill 1 E of North concentric crystalline white marble1 &c [illeg] conglomerate2 above trap3 hills [Corundum] hills F R overlies [Trap] from hill
1 A metamorphic rock derived from limestone.
2 A coarse sediment in which the fragments are rounded (often opposite of breccia).
3 Trappean: hard, splintery lava. Derived from 'trappa’, meaning steps in Swedish and referring to the step-like scenery associated with this rock.
Brick in modern Breccia Kingfisher eating lizard Mac C1
milk cream for [animalcule] Shells action under blowpipe try the old ones Crabs that run & leap Milk from goat on 7th [February 1832] examined on 11th composed of small animalcule about .0001 in diameter
Dineutes of MacLeay2
1 Robert McCormick (1800-1900), Surgeon on the Beagle 1831 - April 1832.
2 See Darwin’s insects, p. 46: '213. 214. Gyrinus allied to Dineutes MacLeay (?) Hab Do. [Cape Verde Islands]’ William Sharp Macleay (1792-1865), naturalist and diplomat who devised the Quinary System of classification in which the five main animal groups are represented by 'circles of affinity’.
N Pt 29 – 97
Capa 1/33 35/1
Sea only in patches R in diameter
microscope showed small globules floating & transparent irregular shaped [fluids] in the water.1
1 See 'Oily matter on sea’, Zoology notes, p. 31.
patches uniting & joining — showing irridescent colours
26th [March 1832] 10. am 82° 41 M 82° 101 M 81
2° 21’ S E
West 60 ½ 200/1 between 230/1 & 30 bottom
18° 6’ S
2° 21’ E of [
Bahia] 38 30 2 40° 54’ 36° 6’ W 30/1 230/1 250/1 ¾ & 7 = 21 [divided by] 4 [=] 5 About 20 ½
27th [March 1832]
½ past 8 am 180/1
¼ pa 1 pm ¼ pa 2 pm 3 pm 4 pm 5 pm 6 pm 7
250/1 30/1 bottom 20 bottom 22 bottom 21 bottom 21
27th [March 1832] 10 am Sea coated with irridescent oil. ship going 5 K & 2 at ½
hal after 11 water yet oily having run 2 & ½ knots containing Confervae1
1 Microscopic marine algae. See Zoology notes, p. 30 and Journal of researches, pp. 14-20.
27th [March 1832]
Lat 17° 43’ S 45’
Long 1° 7’ E 19’
Bahia 38° 30’ W
[continate] of temp of sea 8 pm — 25 F. 81 ½
(sun set few minutes after 6 o’clock)
28th [March 1832]
8 am bottom 28 79° ⅔
no sun. greenish blueish back
sky pale ultra marine & near horizon pale Berlin blue.
80 79 ¾
4 pm 78 ½
Colour very variable of sea during the day — in the evening very
9 pm [Both] 10 . 20 F. 66° ½
Friday [April or May 1832] NE by E. dip1 S decomposing strata Veins2 of Quartz3 W ½ S Greenstone4 pap.5 long axis. NW by W massive with garnets.6 surrounded decomposing gneiss7 — SW by W ([&] ½?) Hills running NE by E ½ E
1 The angle by which a bed or stratum has been tipped up.
2 A sheet-like body of a metal ore.
3 The commonest mineral in the Earth’s crust, composed of silicon dioxide (silica). Since it is very hard, it tends to remain, for example on beaches, when softer minerals have been destroyed.
4 Low-grade metamorphic rock usually derived from a fine-grained basic (containing relatively low amounts of silica) igneous rock.
5 A small hillock.
6 Silicate minerals generally found in high-grade metamorphic rocks.
7 High-grade metamorphic rock distinguished from granite by its foliated or laminated structure.
27th [May? 1832] Porphyritic1 gneiss — cleavage2 scarcely perceptible on the large scale, but breaks easier in that direction. — Feldspar flattened in same direction good mica3 slate,4 balls of diabase Concentric cleavage has no connection with stratif: ? Corcovado certainly not.— What sort of gneiss decomposes?
1 An obsolete and often miss-used term for a hypabyssal rock with phenocrysts: a crystal which stands out as being larger than the crystals of the matrix containing it.
2 In metamorphic rocks the splitting planes caused by re-alignment of minerals such as mica due to pressure, for example during mountain-building.
3 A silicate mineral which splits into thin sheets.
4 Metamorphosed shale in which cleavage is more obvious than bedding.
30th [May 1832] — [Spring] 74° do 73 best observ. Fern 8 ¼ circumference
18 19 feet high, to the leaves Plate on an average 3 foot [thick] projecting apparent diam 7 " 3
big tree circum 7ft, another 9 ft 7’1 Running water 68.5° do 64.5° good observ beds of fractured quartz & decomposing gneiss dipping small angle S by N. —
1 Trees measured during an ascent of Corcovado mountain, Rio de Janeiro. See Beagle plants, p. 161.
ferruginous spring 2 sorts of trap quartz occurs on a break below the hills.— Traps vary in fracture
June 5th  Mica N E ½ E (?) Mica slate above porphy gneiss? bed1 of [porph.] gneiss irregular both [crossed] & [nearly] by irregular veins of quartz [ferrous] mica slate little talc Concentric rectangle
1 Layer of sedimentary rock.
[slate visible] melted domes [illeg] they not [illeg] in [cooling] than acquire this fracture. shell [meaning] conformably1 Each hill run not same direction as Cleavage Dip ever E
1 Describes sediment apparently laid down on earlier strata with no evidence of tilting of the earlier strata.
7th [June 1832] — Gneiss running NE (some not about) cut through by & superimposed by Trap — concent & partly column [gap] full of quartz & granitic veins Gavia subtending to the coast 42°. —
Lithomarge1 Maximillian Spider2 Humming Birds Planes Sea seen through the wood of shady trees Annales des Sciences Naturelles3
[dip and strike of beds] S N
1 Obsolete term for soft clay-like mineral such as kaolin (OED).
2 Possibly one of the spiders listed in Zoology notes, pp. 44-6.
3 Possibly Gay 1833.
70 .74 N W
70.5 beginning at 10 am 1.25 in ½ hour in 6’ .38 of rain fell +12" 35 in 3hr 1.6 9-11° 1° :8 3 .54
1 Barometer reading.
28 58 centre West 1.788 Quail Island
[Mr Farrar Lesson]
Above Breccia from [time] the dislocation of parent strata a Greyish white sand with Turbo like Odontoma
4 feet thick
b a [coarser] with numerous shells c Beneath, a conglomerate of black feldspathic rocks with numerous shells & corals
(a) about 4 feet thick
b about a foot spatangus1 perfect quietly deposited —
1 A heart-shaped sea urchin (echinoderm).
N.W. of Island
heaved up contorted together with inferior conglomerate: allowing a vein of superior breccia to descend b & c much [trouble] beneath a [bright] red aluminous1 soft rock Hard feldspaths
1 Meaning silicate minerals containing aluminium.
rock 12 feet thick prismatic 5 sides having appearance with curved columns of stratification Beneath (a) is a confused mass of decomposing rocks in which crystals are visible either red or yellow clay; upon which [rest] about a foot thick of tufa1 or carious2 rock Then feldspathic rock
1 Limestone formed chemically.
all the latter appears to have undergone an upheaving viz after deposition;
probably at same time that (a) was upheaved certainly N by E end
of island white sand made up of shells upon which rests carious rock1
1 Darwin recalled in his Autobiography, p. 81, 'The geology of St. Jago is very striking yet simple: a stream of lava formerly flowed over the bed of the sea, formed of triturated recent shells and corals, which it has baked into a hard white rock. Since then the whole island has been upheaved. But the line of white rock revealed to me a new and important fact, namely that there had been afterwards subsidence round the craters, which had since been in action, and had poured forth lava. It then first dawned on me that I might perhaps write a book on the geology of the various countries visited, and this made me thrill with delight. That was a memorable hour to me, and how distinctly I can call to mind the low cliff of lava beneath which I rested, with the sun glaring hot, a few strange desert plants growing near, and with living corals in the tidal pools at my feet.’
then prismatic feldspar between these & former ones hard white rock with yellow spots heap of white balls beneath white sand.—
1 Feldspathic Lava
2 Overlying the white sand
3 beneath white sand
4 between Feldspathic & lower crystalline rocks [on] white sand
by a well marked vein in lower rock prismatic crab in white sand same process now going on shore living Iron found in it. Upper breccia composed of lower rocks
new breccia with both upper & lower feldspathic rock containing iron some inches deep is it cemented by decomposition of neighbouring rocks standing from [without wacke] Some contemporaneous
of Dykes1 standing from [2 words illeg] running like trap dikes; upper divisions of prism filled with indurated2 sand withstanding weathering
1 A sheet of igneous rock which has been injected into the country rock from beneath.
2 Hardened. Sediments are often said to be indurated if they are cemented, for example by lime.
I should think this coast one of short duration — sand white from decomposition of feldspar (?) In places every rock is covered with pisiform concretions1
1 A hard lump of rock within a softer matrix. These are often caused by chemicals migrating through the rock and cementing the existing sediment.
in places impossible to tell whether it is breccia of
moden modern or older days. Going for a hundred yards more South lower beds of white sand become filled with large boulders of lower rocks
beneath this comes a line of another stratum; more soily & contains large & more numerous shells a regular bed of oyster remains attached to the rocks on which
they grew alternation of sand boulders [sandy & soily] sand The lower carious part of Feldspar perhaps owing to expansive power
of stream.— Although in parts this old sea coast is 30 or 40 feet above present level of ocean yet in others the present breccia is again covering it
owing to it having sunk again most likely as it agrees with that which has been raised What confusion for geologists. coast crosses Island NE = SW. On the E of island only appearing [proof] is is E on W. in W.
Jan 18th.  Lower sorted beds full of Turritella1 much better seen in S of island Here the sand is only few inches thick, then the white concretion — then about 6 feet of rubbish
1 A genus of marine snail with high-spired shell.
which looks as if it were cemented by mortar.1 At S end of island sand becomes finer & thicker not so full of organic remains Feldspathic 18 ft thick Upper balls [taking] a concretion
1 Lime and sand cemented by water.
form balls even 3 feet in diameter
Enl The upper rock in places has entangled the lower pyroxene1 rocks When does Pyroxene occur ??
1 Silicate mineral such as augite often found in basic igneous rocks.
procure more concrete masses Aplysia hurts1 opposite Quail Island beds higher than island. Carious & amygdaloid2 Augitic3 conglomerate amygdaloid with white matrix confused mass of Porphy Augit Alum.
1 A species of sea hare of order Anaspidea. See Zoology notes, p. 18 and Journal of researches, p. 6.
2 Of almond-shaped cavities in volcanic rocks caused by gasses that were subsequently infilled by mineral precipitates.
3 As augite, a pyroxene mineral, occurring mostly in volcanic rocks.
Amygdaloid.— Signs of sand bank running
the N E. but dipping in [wrong]. — concretions long Dyke 18 inches wide, tortuous. Olivine1 porphyritic: running some 100 yards
1 A silicate mineral generally associated with basic igneous rocks such as basalt.
found the line of coast, about 2 miles — beneath it are olivine or dyke &c
above describ[ed] —
Sand 2 30 ∠
curiously furrowed like sea coast
something like top of Quail
Concentric amygdaloid ball more amygdaloid
Behind coast & beneath Feldspathic are the augite & olivine rocks
Agency of water
Indentation in mountain
Pebbles not rounded
2 system of table lands
[the] [illeg] another succession of such
Or Quail Island has sunk
Of course near the old coast land should be lower
20th [January 1832] N of Quail Island — Inferior table land Diluvium1 crossed by another long valley: NW in the Baobob Perpendicular of grey rock of feldspar & augite: new soil (1)
1 Deposits which have the appearance of having been laid down by floods.
N 1 ?? . 1041
Sides of hill show great torrents on side crystalline rock (2) amygdaloid porphyritic prismatic [trap] of feldspathic rock (3)
1 Added rock specimen number.
Differences of augite & hornblende1 ??
4. White rock in stream
5. crystalline altered rock by side of this the higher table land is composed Dykes in upper crystalline rocks Red hill red lapilli2
1 An amphibole mineral.
2 Small fragments of rock blasted from a volcano (literally 'little stones’).
& concretion balls NE & by SW above 2 miles comes the chain of augitic hills like base of Quail Island White magnesia1 quantity contains fragment of lapilli origin of concretion
1 Magnesium-rich limestone.
|line of former coast // to the present from NW. by W to S: ~ to E NE. & extent of lava from Red Hill line of former coast // to the present from NW. by W to S: ~ to E NE. & extent of lava from Red Hill|
Go to E beyond Praya to Hill
Coast shells & concretions & appear in line between Red Hill & F upon Augitic
augiti rock & covered by felspathic rocks signs of destruction & veins in [lower] rock
Is the very centre of Island Augitic & the highest table land ??? Some rocks in Quail island have undergone a change [order] locality. Upper Feldspathic
23rd [January 1832] Lumps of white conglomerate on [table] land of Feldspathic are [the] caught up // Top Flag Hill & (2) beds of rubbish — dipping alternation red carious rock & breccia with white matrix 54
near here the covering of former coast 60 [feet] is very thick Under flag hill the line of former coast is lower. Must have been a previous [fern] hill
sea coast rest on conglomerate
 central augitic chain great valley N & S augitic carious & covering conglomerate containing scoriae1 —
1 A solidified ash which is generally denser than water and has many gas holes.
central chain with mica
pebbles of scoriae
Jan. 26.th  —
higher land between St Martin (1)
Pap of scoriae. most regular cone surrounding country covered with blocks of this rock rock beneath Red Hill much contorted & covering of Feldspathic rock
This cone situated in broad valley (2 & 3) of augitic rocks
2nd [February 1832] Fuentes. Pap like hills, Feldspathic. what relation to covering? Hill N of Praya
red like red hill
[northern white] large hill Fuentes — alternate red rubble & Feldspathic dipps NE & the [seven]
3d [February 1832] E coast Cellular rock exudes at the
fi very first formation of coast lower parts boulders decomposing augitic rock, with dykes like under flag has been cut through by instantaneous stream of water
leaving bed of red lapilli &c over which thin column curved & Feldspathic rock twisted. in these parts the rotten rocks beneath FR. more preponderate
wild cats. kingfisher Lizard Mac Cormick1 Lava perhaps first stream & more melted Concentric Balls before lava red lapilli
1 Robert McCormick (1800-1900), Surgeon on the Beagle 1831-April 1832.
appear to have come in direction of Flag staff hill bringing with it white stuff & red [
lapilli] [rubble] red Coast 90 feet thick. Rock that
overlies carious full of lime crystallised by heat in diverging rays Shells action under Blowpipe??? in [illeg] coast Conus1 Isocardia2 & [many] Ostrea3
1 A marine turret snail.
2 A genus of bivalve mollusc.
3 The oyster Ostrea sp., a bivalve.
Milk for animalcule
Coast covered by running & leaping Crabs
Ornithomya Salient Feronia Leach1
20th [February 1832] Lower rock vitreous feldspar no. 1. prismatic with acicular2 Hornblende. distant peaks the same. — No monocotyledon3 plants
1 See specimens 225-7 in Darwin’s insects, p. 46, collected on St. Paul’s Rock.
3 A plant with one seed leaf, with parallel-sided veins and three-part flowers etc, such as grasses and orchids.
ants nest 3 feet high 2 thick with a tube at bottom Lichen,1 mosses Terns & noddy on trees alight beautiful pink flowers on the top of mountain on trees
1 Specimen not in spirits 309 in Zoology notes, p. 372 'from the highest peak of Fernando Noronha’.
vitreous feldspar & tufa alternate & dykes — white soil form beds
25th [February 1832] Solitude on board enervating heat comfort: hard to look forward pleasures in prospect: do not wish for cold night delicious sea calm sky not blue
Geology — Abrupt valley. Barancas1 poor specimen of upper strata. melt. — interesting parts NB effects of [posterior] current (red line) Upper strata Trap-form dendritic2
1 A deep break or hole made by mountain floods, or heavy rains. Commonly used for a steep bank or ravine.
2 'tree-shaped’, such as the layout of streams into a river or finely branching minerals in a rock.
Reason for not think the sea has fallen Pillars could stand on table-land Lower rock very magnetic & all so big hill show some appear of table
Quail Island composed of more compact perhaps from being a
mountain upper part of current
Amygalous with oblong cavities
St Paul’s Lava shore — outer rock curious weather — Mistake for dung Vitreous feldspar crystal remains [outside] ? Phonolitic [Fernand] Noronha
Trap in do small crystals of vitreous feldspar [crossing]
each oth not compact Flag Staff Hill doubly submarine Does not the cemented bed or diluvium prov water remain on it
Perhaps the sea really formed the larger valleys. line of elevation N of Quail Island not nearly so violent oysters first appear
on bed of boulders Fernando No volcanic influence East of Andes Connexion of Trachyte1 with basalt2 interstratif ∴ of dyke & phonolite3 on each side Dyke [travers] phonolite
1 A fine-grained acid igneous rock.
2 A fine-grained, basic igneous rock. The predominant lava of oceanic islands.
3 A rock similar to trachyte that rings when hit with a hammer (sometimes also called clinkstone).
& Trachyte hills most evidently appear of different origin from Pap-form hillocks Effects of
Pra table land to scenery at Praya Vegetation on Fernando
[W or R.]
Formation of dyke [or mine] from cooling & then cracking
29th [February 1832]
Coast crystalline rock dip NWW
interstratif with bed of granite1 little mica constituent part arranged
in lines. chlorite sometimes in veins
These too pass into each other
Hornblende in weathered surface || layer crystalised ||
1 Coarse-grained acid igneous rock.
[gneiss in hornblende rock, diluvium above]1 Diluvium E E Gneiss Hornblende rock
1 See the fair copy of this sketch in the geological diary DAR 32.41v.
Diluvium angular gneiss in red clay above where small covering of globular diluvium Trap — stratified with Gneiss. — both crossed by a dyke of reddish granite — [Much] conglomerate of the rock
rather above present water [mark] crossing trap there a several of the hornblendic & + dykes sending off branched ones. — —
the junction in all these like knife
Gneiss with little mica. ∴ nearly [Trap] in neighbourhood large crystals of hornblende Gloves [piece] of fine hornblende rock imbedded Vide Plate
Will the clay effervesce? No Vertical shale1 running SW by W [decomps] NW. by W March 3d —  Temp of Spring 80°
1 A fine-grained sedimentary rock.
King1 3 & Stokes2 4
5th [March 1832] About 15 feet of mica then larger mass red clay with nearly verticle [streak] of a rock resembling [decompos] gneiss — dip N by W hornblende crystal & on the top bed of quartz
1 Philip Gidley King (1817-1904), Midshipman on the Beagle, 1831-6.
2 John Lort Stokes (1812-85), Mate and Assistant Surveyor on the Beagle, 1831-6.
pebbles // then bed from valleys must be
a 2 hundred feet thick Spring 80 red clay 101 ½ in white sand 108 & spring 81 Quartzy vein, not very regular in clay
blends with a [quartzose] gneiss gneiss dipping regularly about 70° to NNW again beds of reddish & [variegate] clay / carbonaceous matter / with hard veins crystaline veins no signs of deposition
Iron sandstone1 dipping small 10 angle to the north from sea with beds of clay containing boulders of gneiss
I do not know if any differ from small formation or [if] [noone] go under the gneiss
1 A sedimentary rock made of cemented sand.
The sea is now breaking down the strata I suppose has undergone changes as it must have been once horizontal
13th [March 1832]1 Conglomeratic gneiss trap syenite2 in a sandy (full of crystaline) base — alternation with ferruginous sand & green aluvium3 slate dip N by
E 5° —
1 '13th’ is presumably a mistake for 14th as the Beagle was at sea on 13 March.
2 Coarse-grained intermediate igneous rock.
3 Alluvium: associated with deposits laid down by rivers.
line of contortion ? N by W Veins of coal covered by hard sandstone — in green clay
14th [March 1832]
20-30 fathoms extending 6 or 7 miles from the coast [bare. beach. copy]
[green sandstone with contortion?] S of green sandstone blue aluvium
rock like modern breccia dipping to N by W Gen: obser: 15th [March 1832] Small black ant putting everything to flight,1 — spiders & blattae2 in great agitation
1 See specimens 357-8 in Zoology notes, p. 29. Darwin’s insects, p. 48, reports that the specimens have not been found but the ants were ''driver ants’ (subfamily Dorylinae), probably of the genus Eciton.’
a brick stopped their course
Spider regular web
19 20’ South
38° " 8 West
21st March 
23d [March 1832]
29 [March 1832]
149/ no bottom
30/ at 4 bottom
N by W ∠ 12°
coarse [fine] sandstone incrusted:
[1 Lava] the dark
whiter sand stone [illeg] no in lines
plates of iron
hexagonal [meaning] cleavage of trap 2 & ½ W 2 & ½ N
1 Very fine-grained sediment such as shale.
Basalt escarpement1 W by ½ S overlying sandstone. & & lifted up with it
— modern breccia columnar basalt with tufa, bears to other [illeg] SW by NE
1 A ridge of landscape where a harder layer of tilted rock has resisted erosion more than the layers above or below.
Gneiss at Bahia & St Pauls Zoophyte1 May 9th  Lagoa2 Red & white clay forming the rounded hill. [signs] of beds D SSE Granite (?) Feldspar Porph concentric layers on the grand scale enormous block not [incumbent] vegetation landscape in [momentum]
1 A general term in Darwin’s time for organisms which seemed to sit on the boundary between plants and animals, such as bryozoa, sponges, corals.
2 Lake or lagoon.
3 salt water spiders one in W B: [one] lengthened one [brown] rounded hills running (Sugar loaf) W by S & N by E 15th [May 1832] dip gneiss ESE ½ S Hills ENE 19th [May 1832] — strike1 SSW 59° D ESE gneiss fine grained beds. good observation.
1 The compass bearing of the horizontal line perpendicular to the dip.
beneath porphyritic syenite — garnets edge well marked. — [serpen] soil decomposed like Bahia process visible. — boulders & greenstone lying about
diameter circum small height 4.1 height 5.
6.4 diameter [illeg]
height 7 ¾ circum large
height 6 ½
if round. 1f " 2 ½
if square. 1f " 4 ¼
height 10 ¾
June 2d.  Inferior mica slate (Vide specimen) rock bed of about 6 inches of gneiss — Superior gneiss abounding [patched] with mica & garnets: both something inbedded in large crystals of Feldspar Running NE by N I think the water have levelled this valley. hard mud dyke
sky intense blue dead clear clouds at the Corcovado fewness of bird swallows quiet. — general discussion on [rock] bird [beneath] &c The [hardness] gneiss decomposing & covered by a more compact part, is is if where constituent parts
of the gneiss are more abundant, that this rock most easily decomposes Clouds passing over Corcovado & yet not stopping. — Leucauge
web tissue above rock1 Tetragnathus Long Epeira2 near the water web vertical Travellers too much seek contrasts
1 An orb-weaving orchard spider. See Zoology notes, pp. 38-9.
2 A spider of the genus Aranea
shades in proportion so much darker
Scale in nature amongst spiders kept up by hymenop1 in absence of Carabid supplied by the Ants. —2
may after been less of insects & caterpillars
June 10th 
gneiss dipping SW!
silence well exemplified
1 Hymenoptera: social insects (wasps, ants, bees etc).
2 This observation was published in Journal of researches, p. 39.
rippling of a brook— Lofty trees white holes. the pleasure of eating my lunch on one of the rotten trees — — so gloomy that only shean of higher enters the profound. — tops of the trees [entwined] cold damp feel
Textual notes to the Cape de Verds notebook
[IFC] page written perpendicular to the spine.
C. Darwin] ink, written parallel to the spine.
1.4] Down House number, not transcribed.
88202324] English Heritage number, not transcribed.
13/4…35] written parallel to the spine.
[1a] 2.8...32] written upside down from other entries on the page. page is heavily stained.
[2a] Don...Ponseca] not in Darwin’s handwriting.
[6a] sketches drawn perpendicular to the spine, not in Darwin’s handwriting.
[7a] sketch drawn perpendicular to the spine.
13…52] grey ink. [18a] Corcovado...not.—] ink.
[27a] sketch written upside down from other entries on page.
Then…(?)] written perpendicular to the spine.
[IBC] page written perpendicular to the spine.
'C Darwin’ 'Bohn’ and 'Coqu’ written parallel to the spine.
in 34’ 1.6] ink.
1] Barlow number, not transcribed.
[1b] [Mr Farrar Lesson]] written perpendicular to the spine, over other entries.
[25b] 104] added rock specimen number.
[60b] there are some marks that may be obscure sketches on this page.
[70b] Clay Slate] overwritten by '20-30...coast’. There is possibly a faint sketch of concentric semicircular lines radiating downwards below the date.
20-30...coast] written perpendicular to the spine.
[bare...copy] blue grey ink, written upside down from other entries on page.
[71b] sketch drawn perpendicular to the spine.
[74b] ↑↑] ink.
[80b] page in ink.
Return to homepage
Citation: John van Wyhe, editor. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 2 July, 2012