APPENDIX 473 



ory, vol. II, Lects. 32 to 35, 1904. De Vries: Species and Varie- 

 ties, Their Origin by Mutation, 1905. Kellogg: Darwinism 

 To-day, 1907. 



CHAPTER VIII. GEOGRAPHIC ISOLATION AND SPECIES-FORMING. 



Wallace: Darwinism, pp. 338-374, 1891. Romanes: Darwin and 

 After Darwin, I, pp. 204-248, 1895. Weismann: The Evolution 

 Theory, vol. II, Lect. 32, 1904. Jordan: The Origin of Species 

 through Isolation, Science, N. S., vol. xxii, pp. 545-562, 1905. 

 Gulick: Evolution, Racial and Habitudinal, 1905. Montgomery: 

 Analysis of Racial Descent in Animals, 1906. 



CHAPTER IX. VARIATION AND MUTATION. 



Darwin: Origin of Species, ch. i, ii, and v, 1859. Darwin: Animals 

 and Plants Under Domestication, vols. I and II, 1868. Wilson: 

 Chapters on Evolution, pp. 121-142, 1883. Wallace : Darwinism, 

 ch. iii and iv, 1891. Bateson: Materials for the Study of Varia- 

 tion, 1894. Romanes: Darwin and After Darwin, vol. I, pp. 

 50-65, pp. 120-135, 1896. Bumpus: Variations and Mutations 

 of the Introduced Sparrow, in Biological Lectures, Wood's Hall, 

 pp. 1-15, 1896-97. Biometrika: A Journal of Variation, 1901 

 to date. Vernon: Variation in Plants and Animals, 1903. Mor- 

 gan: Evolution and Adaptation, 1903. Kellogg and Bell: Studies 

 of Variation in Insects, 1904. Davenport: Statistical Methods, 

 2d ed., 1904. De Vries: Species and Varieties and Their Origin 

 by Mutation, 1905. 



CHAPTER X. HEREDITY. 



Brooks: Heredity, 1883. Weismann: Essays upon Heredity, vol. I, 

 Lects. 4 and 6, 1891 ; Essays upon Heredity, vol. II, ch. xii, 1892. 

 Marshall: Biological Lectures, pp. 159-191, 1897. Galton: 

 Natural Inheritance, 1899. Conn: Method of Evolution, pp. 

 101-156, 1901. Bateson: Mendel's Principles of Heredity, 1902. 

 Redfield: Control of Heredity, 1902. Wilson: The Cell in De- 

 velopment and Inheritance, 2d ed., 1904. Montgomery: Analysis 

 of Racial Descent in Animals, 1906. Woods : Heredity in Royalty, 

 1906. 



CHAPTER XI. THE INHERITANCE OF ACQUIRED CHARACTERS. 



Weismann: Essays on Heredity, vol. I, 1900. Spencer- Weismann : 

 Contemporary Review, May-December, 1893; September-Octo- 



