548 APPENDIX 



3. Chromosome theory of inheritance. 

 (a) Maturation and fertiHzation. 



(h) Continuity of germ plasm ; Weismann. 



4. Mutations ; de Vries. 



5. (Optional) Additional principles of heredity ; Morgan. 



6. Applications of the principles of heredity. 



(a) Plant and animal breeding ; Burbank. 



1. Aim — improvement as to increased production, im- 

 proved quality, disease resistance. 



2. Methods ; selection, hybridizing. 



3. Results. 



The history of one plant and one animal from the follow- 

 ing : wheat, cotton, cattle, poultry. 



(b) Eugenics. 



1. Aim and methods. 



2. Work of Eugenics Record Office. 



3. Inheritable traits in man ; Edwards, Juke, and Kallikak 

 families. 



4. Comparison with euthenics. 



7. Organic evolution. 



(a) Evidences of evolution ; paleontology, comparative anatomy, 

 embryology, geographical distribution, experimentation. 



(b) Theories concerning method of evolution. 



1 . Use and disuse ; Inheritance of acquired characters ; 

 Lamarck. 



2. Natural selection ; Darwin. 



3. Mutation ; De Vries. 



4. Modification of germ plasm ; Weismann. 



8. Biography ; contributions of men named above. 



VI. Microorganisms and Human Welfare 



1. General characteristics and functions carried on by bacteria. 



2. Experiments on distribution of bacteria and conditions affecting 

 growth. 



