RECORD: Darwin, C. R. Geological diary: Comparative statement of the export of Nit[rate] of Soda alias Saltpetre. CUL-DAR37.685 Transcribed by Kees Rookmaaker, edited by John van Wyhe (Darwin Online,

REVISION HISTORY: Transcribed by Kees Rookmaaker, edited by John van Wyhe 10.2012-3.2013. RN1

NOTE: This document, part of the largest scientific document composed by Darwin during the voyage of the Beagle, is written mostly in ink. Where pencil was used instead this is noted in the textual notes. Marginal notes are here integrated into the text.

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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.


Comparative statement of the export of Nit. of Soda alias Saltpetre from Icquique during the years 1831 ... 34, specifying the number of Quintals & their cost on board shipped to each country respectively. —

Year England France other
price on
Value in
£ Sterling
1831 6700 30.185 4000 40.885 $4 or 16s $ 163.540 32708
1832 25700 16900 8800 51,400 $3.6. 15s $ 192 750 38550
1833 45905 32150 13300 91,355 " " " $ 432581:2t 68516,,5s
1834 114108 27830 7600 149,538 $3.3 or 13s 6d $ 504690 :6t 100938,3s
  192413 107065 33700 333178   $. 1203.562 £ 240.712, 8s


Note. The first shipment of Nit: of Soda. from Iquique to Europe was made in the British ship "Globe" & (on French account) to France: in the month of July. 1830. — Export of that year were as follows


13.000 to France
4.300 other countries. } Grand total 17.300 Quintals.
at four dollars (or 16s) on board $ 69.200 or £ 13.840,,0,,0.

Mr Belford Wilson Consul General for H.R. Majesty to Peru allowed me to copy this document. —

685 verso [blank]

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File last updated 1 April, 2013