Down, | Beckenham, Kent.
Nov 17. 1871
Dear Professor Oliver
You have been very kind to take so much trouble for me; the information is amply sufficient, as I wished to learn how far the roots cd act on rocks, not caring about the nutrition of the plants.1
Yours truly obliged | Ch Darwin
Please cite as “DCP-LETT-8074F,” in Ɛpsilon: The Charles Darwin Collection accessed on