11. Darwin used artificial selection as a springboard to introduce and support the theory of natural selection . 12. Observations of variations in animals and plants formed the basis of the theory of natural selection . 13. The "'evolution of schizophrenia "'refers to the theory of natural selection working in favor of the disorder. 14. Himmelfarb makes her greatest effort in discussing Darwin's theory of natural selection and arguing against its validity. 15. Was Darwin's theory of natural selection wrong? 16. It was famously outlined by Ronald Fisher in his 1930 book " The Genetical Theory of Natural Selection " 17. William Charles Wells, predecessor to Charles Darwin on the theory of natural selection was another schooled in Dumfries. 18. "Flora Tasmaniae " was " the first published case study supporting Charles Darwin s theory of natural selection ". 19. By the time the first edition was published, the development of Darwin's theory of natural selection was in progress. 20. Part Two is a discussion of " the logical and conceptual bases of the theory of natural selection ".