Dear Lubbock
Many thanks for your interesting note.— I am very glad to hear about your brother.2 What a splendid joke about Falconer.—3
I shd. much like to see the Builder, with Huxley, which shall be returned.—4
I do not think Instincts present any great difficulty, for they vary & the variations are inherited. Your cases of important organs differing much in (apparently) allied forms is a much greater & very serious difficulty & I can take refuge only in our ignorance of correlations5
I have several other letters to write & am as idle as a dog, so Farewell | Yours very truly | C. Darwin
I have despatched letter to Wollaston.—6
Please cite as “DCP-LETT-2411,” in Ɛpsilon: The Charles Darwin Collection accessed on