Contents: The Darwinian Hypothesis (1859), The Origin of Species (1860), Criticisms of "The Origin of Species" (1864), The Genealogy of Animals (1869), Mr. Darwin's Critics (1871), Evolution in Biology (1878), The Coming of Age of the Origin of Species (1880), Charles Darwin (1882), The Darwin Memorial (1885), Obituary (1888), Six Lectures...on the Phenomena of Organic Nature (1863). Charles Darwin’s “On the Origin of Species by Means of Natural Selection” was first published in 1859. The most influential and controversial biological book written in the 19th century, Darwin theorized that natural selection caused evolutionary change rather than the hand of God. ( )