"Professor Huxley's paper on 'The Persistent Types of Animal Life'"

 Thomas Henry Huxley (1825 - 1895), was an English biologist and a Fellow of the Royal Society. Nicknamed 'Darwin's Bulldog' for being an aggressive defender of Charles Darwin's theory of evolution, his reaction to the idea of natural selection was "How extremely stupid not to have thought of that!". He was also the man who coined the term agnostic in 1869, to describe his own beliefs.