64 STATE NORMAL SCHOOL, 



3. Is Mutation a Factor in Evolution of Higher Verte- 

 brates?: C. H. Merriam, Proc. of 59th Meeting of A. A. 

 A. S., Dec, 1905, Jan., 1906; pp. 383-408. 



4. Organic Variation: H. S. Williams, Science, vol. 6, pp. 

 73-85. 



5. Mutations: Thos. Dwight, Science, vol. XXI, pp. 529- 



532. 



6. The Mutation Theory of Organic Evolution from the 

 Standpoint of Animal Breeding: W. E. Castle, Science, 

 vol. XXI, pp. 521-525. 



7. Ethology and the Mutation Theory: W. M. Wheeler, Sci- 

 ence, vol. XXI, pp. 535-540. 



8. Causes of Variation: C. V. Riley, Pop. Sci. Mon., vol. 

 XXXIV, pp. 484-496 and 809-820. 



9. Mutation Theory of Organic Evolution from the Stand- 

 point of Cytology: Ed. G. Conklin, Science, vol. XXI, pp. 

 525-529. 



10. Variation; General Treatment: Conn, The Method of 

 Evolution, chap. 4, pp. 101-156. 



11. New Lines of Investigation: Conn, The Method of Evo- 

 lution, chap. 8, pp. 334-373. 



12. Variety and Unity in Life: Jordan and Kellogg, Evolu- 

 tion and Animal Life, chap. 9, pp. 131-162. 



13. Variations and Mutation: Jordan and Kellogg, Evolu- 

 tion and Animal Life, chap. 19, pp. 131-162. 



14. Kinds of Variation: Davenport, Principles of Breeding, 

 chaps. 1-6, pp. 7-140. 



15. Causes of Variation: Davenport, Principles of Breed- 

 ing, chaps. 7-10, pp. 141-345. 



16. Mutations: Davenport, Principles of Breeding, chap, 

 6, pp. 110-139. 



17. Variation: DeVries, Darwin and Modern Science, chap, 

 4, pp. 66-84. 



18. Heredity and Variation in Modern Lights: Bateson, 

 Darwin and Modern Science, chap. 5, pp. 85-101. 



