skip to content

Darwin Correspondence Project

To W. W. Baxter   21 September [1873]1

Down, | Beckenham, Kent.

Sep. 21

Dear Sir

Many thanks for all the substances.

Please send me 6   2 oz Bottles with corks.—

I find that Iodic Acid produces so remarkable an effect, that I shd. very much like to try Hydriodic Acid. (2 gr. to 2 oz of doubly distilled water) if you can obtain it for me.—2

Dear Sir | yours faithfully | Ch. Darwin


The year is established by the relationship between this letter and the letter to W. W. Baxter, 8 September [1873].
Hydriodic acid produced a strong inflection of the leaves of Drosera (see Insectivorous plants, pp. 189, 190).


Requests 6 2oz bottles with corks. Folic acid produces remarkable effect. Orders hydriodic acid.

Letter details

Letter no.
Charles Robert Darwin
William Walmisley Baxter
Sent from
Source of text
DAR 185: 136
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 9061F,” accessed on 20 April 2019,

Also published in The Correspondence of Charles Darwin, vol. 21