On the Origin of Species the manuscript for his "big book" on Species, "Natural Selection". By mid March 1859 Darwin's abstract had reached the stage where he was thinking of early publication; Lyell suggested the publisher John Murray, and met with him to find if he would be willing to publish. On 28 March Darwin wrote to Lyell asking about progress, and offering to give Murray assurances "that my Book is not more "un"-orthodox, than the subject makes inevitable." He enclosed a draft title sheet proposing "An abstract of an Essay on the Origin of Species and Varieties Through natural selection", with the year shown
On the Origin of Species as "1859". Murray's response was favourable, and a very pleased Darwin told Lyell on 30 March that he would "send shortly a large bundle of M.S. but unfortunately I cannot for a week, as the three first chapters are in three copyists’ hands". He bowed to Murray's objection to "abstract" in the title, though he felt it excused the lack of references, but wanted to keep "natural selection" which was "constantly used in all works on Breeding", and hoped "to retain it with Explanation, somewhat as thus",— "Through Natural Selection or the preservation of favoured races". On 31 March Darwin