El origen del hombre
The two 450-page volumes of "The Descent of Man, and Selection in Relation to Sex" went on sale at twenty-four shillings, with a publication date of 24 February 1871. Within three weeks a reprint had been ordered, and 4,500 copies were in print by the end of March 1871, netting Darwin almost £1,500. Darwin's name created demand for the book, but the ideas were old news. "Everybody is talking about it without being shocked" which he found "proof of the increasing liberality of England". To critics, the book was "raising a storm of mingled wrath, wonder and admiration", though they denied that "spiritual powers" had evolved from brutes in case earnest men gave up "those motives by which they have attempted to live noble and virtuous lives".