Note 234 — Chapter XIV · THE SPREAD OF EVOLUTION. 1861—1871.
Reading edition
"Falconer, whom I [Lyell] referred to oftener than to any other author, says I have not done justice to the part he took in resuscitating the cave question, and says he shall come out with a separate paper to prove it. I offered to alter anything in the new edition, but this he declined."—C. Lyell to C. Darwin, March 11, 1863; Lyell's Life, vol ii. p. 364.