Reactions to On the Origin of Species stage where he was able to turn his attention fully to "Species", and from this point he was working to publish his theory. On 18 June 1858 he received a parcel from Alfred Russel Wallace enclosing about twenty pages describing an evolutionary mechanism that was similar to Darwin's own theory. Darwin put matters in the hands of his friends Lyell and Hooker, who agreed on a joint presentation to the Linnean Society on 1 July 1858. Their papers were entitled, collectively, "On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means
Reactions to On the Origin of Species of Selection". Darwin now worked on an "abstract" trimmed from his "Natural Selection" manuscript. The publisher John Murray agreed the title as "On the Origin of Species through Natural Selection" and the book went on sale to the trade on 22 November 1859. The stock of 1,250 copies was oversubscribed, and Darwin, still at Ilkley spa town, began corrections for a second edition. The novelist Charles Kingsley, a Christian socialist country rector, sent him a letter of praise: "It awes me...if you be right I must give up much that I have believed", it was "just as noble a conception