To J. D. Hooker 18 [September 1869]1
Down. | Beckenham | Kent. S.E.
My dear Hooker
We shall all be right glad to see you this day week; let us know Trains to Orpington & in all probability we can send to meet you.—
I much want a query answered.— Consult any of your colleagues learned in physiology.— When a large piece of bark is removed from a tree, does the bark ever regrow in isolated points, separate from the growing margins of the surrounding bark. I fancy I have heard that this is sometimes the case.— It bears on Pangenesis & on little powers of repair by plants.2
If you can answer in affirmative pray send me a line,—if I do not hear, I shall understand your answer is a negative—.
Yours affect, | C. Darwin
Asks JDH to consult colleagues learned in physiology for answer to query: when a large piece of bark is removed from a tree, does the bark ever regrow in isolated points [separate] from the growing margin of the surrounding bark? Query bears on Pangenesis and on power of repair in plants.
Please cite as
Darwin Correspondence Project, “Letter no. 6896,” accessed on 25 April 2017, http://www.darwinproject.ac.uk/DCP-LETT-6896