RECORD: Darwin, C. R. 5.1834. (details of soundings taken). CUL-DAR34.118-119. 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. RN1
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.
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.
118
12th. May. 1834
| a.m. | ||
| 10 | 34 | sand or minute shingle |
| 11 | 33 | |
| p.m. | ||
| 1 | 41 | |
| 2 | 45 | |
| 3 | 48 | shingle (porphyry always) 1 7 2 lines long with small Corallium, shells are caught by claws |
| 4 | 48 | do V 2009 specimens |
| 5 | 53 | |
| 8 | 50 | |
| 12 m.night | 70 | |
13th |
Lat. 51.48. Long: 64.50 | |
| a.m. | ||
| 8 | 55 | minute shingle do |
| 11 | 70 | do |
| p.m. | ||
| 2 | 86 | do 1/10 to 20th [illeg] |
| 3 | 7 ? | do rather finer |
| 3-28' | 71 1/2 | do " do |
| 6 | 70 | do fine with few pebbles 1/10 to 1/12th: Echinus vary |
| 8 | 87 | much greater abundance of quartz granules [illeg] more even some: slate granules & some St Julian porph: more like sand: |
| 12 | 100 | |
14th |
||
| a.m. | ||
| 3.30 | 76 | |
| 8 | 100 | as above & beneath |
| 12 | 80 | |
| p.m. | ||
| 4 | 80 | Fine grey sand, many very minute black slate. transparent quantity rounded granules |
| 6 | 68 | |
| 8 | 83 | minute shingle. one piece. 3: P.San Julian, commonly fine 1/20 to 1/30th |
15 |
||
| a.m. | ||
| 3 | 51 | minute shingle 1/40 or 1/50th of |
118 verso
Capt. King direct
The coast from C. fair weather to Coy inlet [300] cliff land
Then [Coy] coast little & 9 miles N. of C. Virgins
Porph. pebbles between Falklands & Staten —
Soundings between C. Possession & Orange (40 to 50 f ?) very fine & coarse grey sand: quartz slate: some pebbles 2 & 3 to 1/2 inch
119
| p.m. | ||
| 1.15 | 52 | small granules of quartz with minute shingle of porphyry & slate. |
| 4 | 50 | |
| 6 | 30 ? | |
| 7 | 48 | |
| 8 | 51 | |
| 9.30 | 49 | |
| 11 | 52 | |
16th |
||
| 5 | 48 | |
| 7 | 42 | |
| 9 | 45 | |
There were other soundings [illeg] pretty reading to near Cape Virgins: on chart. soundings all sand
The claw four 3 miles from shore brought up much slate, & quartz pebbles 1 or 2 inches long & one or two. —
St Julian. yellow porph. much [alluvium & synoricum] (Blain)
crossing fine between C. Virgins & Sarmientos shoal to the South the water suddenly deepens to between 40 & 50 fathom
119 verso
fathom, again on coming abreast of C. Espiritu Santo shoals again submarine channel & bottom almost entirely slate, 3 or 4 lines long & quartz
On again approaching Sarmiento shoal same soundings but but finer & some very few S. Julian porphyry pebbles
Great variation within few miles shingle 3 & 4 lines, minute pebbles & the finest sand. —
Off C. Espiritu Santo a black muddy bottom (just like interfolding beds at C. Virgins with slate & porphyry many pebbles.
Terebratulae & Spatangus. —
Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)
File last updated 17 October, 2023