The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Abstract of Dayman, Deep sea soundings in N Atlantic, 1858. CUL-DAR205.9.342. Edited by John van Wyhe (Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 10.2021. 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-DAR205.9 contains notes on palaeontology and geology [regarding theory of evolution].

Joseph Dayman. 1858. Deep Sea Soundings in the North Atlantic Ocean between Ireland and Newfoundland, made in H.M.S. Cyclops, Lieut.-Commander Joseph Dayman, in June and July 1857. London, Eyre and Spottiswoode.

The brown crayon number '22' indicates that this document was filed by Darwin in his portfolio for the subject of Palaeontology: extinction.

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Deep Sea Soundings in the N. Atlantic Ocean made in H. M. S. Cyclops by Capt. Dayman R. N. 1858

p. 9. The ooze probably lies in a stratum of no great thickness, for small pieces of rock were several times found in the valve, from which it is inferred that the rod had penetrated through the soft ooze. (But then icebergs!)

Prof. Huxley in his observation of these very deep soundings (p 64) says that fully 9/10 are Foraminifera. Besides them & some Diatomaceæ, there is always a greater or less proportion of angular fragments of some clear mineral, apparently quartz. This does not look like rapid accumulation in open ocean

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p 9.

64. Ask about signs of decay or scaling

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)