To B. D. Walsh 9 July 
Down Bromley | Kent
My dear Sir
I must send you a line to thank you for your interesting letter of May 29th.1
I have been ill during the last two months & have done no scientific work.
Many thanks for the case of Panagæus; this genus is almost sacred to me from old Cambridge recollections.2
Thanks also for the extract from Gen. Paez’ work.3 With respect to Daphnia it is a common genus of Entomostracan crustaceans4 & the facts to which you allude are well known, excepting the case, if true, of the males producing one form of eggs, which must I think have been discovered since I attended to the Genus.5
I sent you a few weeks ago a paper by me on climbing plants;6 but I doubt whether you will find it worth reading.
I am very much pleased that you like Bates’ paper.7 Pray read his Travels.8
Believe me | my dear Sir | yours very sincerely | Ch. Darwin
Thanks BDW for his interesting letter  and for the case of Panagaeus, a genus almost sacred to him since Cambridge days.
- Letter no.
- Darwin, C. R.
- Walsh, B. D.
- Sent from
- Source of text
- Field Museum of Natural History, Chicago (Walsh 4)
- Physical description
- 4pp †
Please cite as
Darwin Correspondence Project, “Letter no. 4867,” accessed on 24 February 2017, http://www.darwinproject.ac.uk/DCP-LETT-4867