Praeger.
Lyell in Hooker sta namesto tega predlagala Darwinu in Wallaceu, da predstavita svojo teorijo skupaj in 1. julija 1858 sta bila pred Linnejevim društvom v Londonu prebrana njuna članka s skupnim naslovom "On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection".