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Darwin Correspondence Project

From Trenham Reeks   25 February 1845

Museum of Economic Geology

25th. Feby. 1845.

Dear Sir,

I have much pleasure in enclosing you a copy of the analysis of the Salt (No 759.)1 I can find nothing in it to account for its inferiority and my former suspicion of its being Potassium proves groundless.

I am, Dear Sir | Your obedient Servt. | Trenham Reeks C Darwin Esqre. Analysis of Salt (No. 759) from Patagonia. Chloride of Sodium— 99.52 Sulphate of Lime 0.26 Earthy matter 0.22 —– 100.00 —–

CD annotations

Top of first page: ‘Tuff specimens’ pencil, del pencil; ‘Second d’Orbigny about value of Salt’2; ‘Not in Geology’ pencil

Footnotes

From a salt lake near the Rio Negro (see Journal of researches 2d ed., p. 66, and South America, p. 74, where the analysis is quoted).
A reference to Orbigny 1835–47, 2: 130, in which the mining of salt from the pans of Andres Pas is discussed.

Bibliography

Journal of researches 2d ed.: Journal of researches into the natural history and geology of the countries visited during the voyage of HMS Beagle round the world, under the command of Capt. FitzRoy RN. 2d edition, corrected, with additions. By Charles Darwin. London: John Murray. 1845.

Orbigny, Alcide Charles Victor Dessalines d’. 1835–47. Voyage dans l’Amérique Méridionale (le Brésil, la République orientale de l’Uruguay, la République Argentine, la Patagonie, la République du Chili, la République de Bolivia, la République du Pérou), exécuté pendant les années 1826 … 1833. 6 vols. in 7 and 4 atlases. Paris and Strasbourg: Pitois-Levrault et Cie, P. Bertrand.

South America: Geological observations on South America. Being the third part of the geology of the voyage of the Beagle, under the command of Capt. FitzRoy RN, during the years 1832 to 1836. By Charles Darwin. London: Smith, Elder & Co. 1846.

Summary

Encloses analysis of salt from Patagonia. Cannot account for its inferiority.

Letter details

Letter no.
DCP-LETT-831
From
Trenham Reeks
To
Charles Robert Darwin
Sent from
Museum of Economic Geology
Source of text
DAR 39: 45–6
Physical description
ALS 2pp

Please cite as

Darwin Correspondence Project, “Letter no. 831,” accessed on 28 March 2024, https://www.darwinproject.ac.uk/letter/?docId=letters/DCP-LETT-831.xml

Also published in The Correspondence of Charles Darwin, vol. 3

letter