skip to content

Darwin Correspondence Project

From William Jenner   24 November 1864

8 Harley St. W

Novr. 24th. | 1864

My dear Sir

You may take carbonate of ammonia with Horseradish.1 But had better not take any other alkali till I have again had the urine analysed— You are not to take any magnesia—2 With reference to the ph. of Ir. & ph. acid I would advise you not to resume them at present—3 remain without medicine till we see how you are ie how far you are able to digest—sleep—&c—unaided by drugs— Do not resume the evil habit of drinking great quantity of fluid—4 Keep all rules but leave off medicine—

Yours very truly | Wm. Jenner.


No letter from CD to Jenner on this subject has been found. Carbonate of ammonia was among the antacids prescribed by Jenner in March 1864 (see letter to J. D. Hooker, 13 April [1864] and n. 6); he recommended spirits of horseradish in his letter to CD of 15 October 1864.
See letter from William Jenner, 21 November 1864 and n. 1. Emma Darwin’s diary (DAR 242) records that on 23 November 1864 ‘C. left off alkali’.
See letters from William Jenner, 9 November 1864 and n. 1, and 21 November 1864.
In addition to prescribing antacids and purgatives, Jenner had advised CD to drink little water (see letter to J. D. Hooker, 13 April [1864] and n. 6, and letter from William Jenner, 9 November 1864).


Prescribes carbonate of ammonia with horseradish. CD is to avoid any magnesia. Recommends CD go without medicine for a time and avoid the "evil habit" of taking too much water.

Letter details

Letter no.
William Jenner
Charles Robert Darwin
Sent from
London, Harley St, 8
Source of text
DAR 168: 54
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 4679,” accessed on 27 October 2021,

Also published in The Correspondence of Charles Darwin, vol. 12