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Darwin Correspondence Project

To C. H. Blackley   14 June [1873]1

Down, | Beckenham, Kent.

June 14th

Dear Sir

I thank you very sincerely for your kindness in having sent me your Experimental Researches &c &c.—2 The subject is one which much interests me, & as soon as I have finished reading a book in hand, I will assuredly begin with interest in yours—

— I remain | Dear Sir | Yours faithfully & obliged | Ch. Darwin


The year is established by the relationship between this letter and the letter from C. H. Blackley, 7 July 1873.
CD’s annotated copy of Experimental researches on the causes and nature of catarrhus æstivus (hay-fever or hay-asthma) (Blackley 1873) is in the Darwin Library–CUL (see Marginalia 1: 59).


Thanks for sending Experimental researches. He will read it as soon as he finishes a book in hand. [See 8965.]

Letter details

Letter no.
Charles Robert Darwin
Charles Harrison Blackley
Sent from
Source of text
Arbor 441–2 (September–October 1982): 148.
Physical description

Please cite as

Darwin Correspondence Project, “Letter no. 8943A,” accessed on 19 March 2018,

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