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Darwin Correspondence Project

From J. S. Henslow  [5 November 1837 – March 1838]1

378 yellow =a prism of about 79 1/2— not yet ascertained what it belongs to2

Ochrosia—as I am 〈    〉 〈p〉uzzled about your Keeling plant—3 the authorities give such [contradictory testimony] & even [it]


The date range is inferred from CD’s letter to J. S. Henslow, [4 November 1837], requesting the mineral specimen numbers and colours of the paper and the letter to J. S. Henslow, [26 March 1838], when the specimen (378 yellow) had recently been identified by William Hallowes Miller.
CD’s note about the specimen is in DAR 39.1: 88, in a catalogue of mineral specimens collected during the voyage. See letter to J. S. Henslow, [4 November 1837], n. 1 for CD’s numbering code.
Henslow found Ochrosia parviflora particularly difficult to identify from existing botanical sources, see Henslow 1838, p. 345.


Fragment glued to CD’s notes on rock specimens. The recto refers to one of CD’s specimens, the verso mentions his Keeling Island plants.

Letter details

Letter no.
John Stevens Henslow
Charles Robert Darwin
Sent from
Source of text
DAR 39: 88a

Please cite as

Darwin Correspondence Project, “Letter no. 338,” accessed on 27 June 2019,

Also published in The Correspondence of Charles Darwin, vol. 2