evolutionary

Athenœum, March 4, 1882. ě-vo-lû-tion-işm, s. [Eng. evolution; -ism.] traces all The theory or doctrine of evolution. "The extreme evolutionism which existence back to a lifele atom or germ."- Brit . Quar. Review, October, 1881, p. 507. The term was introduced by Prof. Huxley in his Presidential Addre to the Geological Society in 1869. Along with it he introduced also the terms Catastrophism and Uniformitarianism, the three words being designed to discriminate the three chief schools of geological thought. ( Quar . Jour. Geol. Soc ., vol. xxv., p. xxxix.)