studies are made of the life histories, habits, and activities 

 of insects belonging to various orders. Emphasis is 

 placed upon the relation of insects to their environment, 

 and their economic relations are also considered. Some 

 work on the morphology and physiology of insects is 

 included. Instruction is given in the approved methods 

 of collecting and preserving insects in all stages of de- 

 velopment. Opportunity is afforded to form individual 

 collections of properly determined specimens. Familiarity 

 with the entomological literature is encouraged. 



Monday. Two hours credit. Assistant Professor 

 Eujs, 



Prerequisite : Elementary collegiate zoology. 



This course gives one hour credit to graduate students. 

 Such students, wishing full credit, must perform extra 

 work, and will register for Course 4a. 



6. Special and Research Work in Zoology. — This 

 course does not involve formal instruction, but is intended 

 for those who wish to take up special work or to do re- 

 search work under direction. Students qualified to work 

 independently may choose problems to meet their indi- 

 vidual needs. Such students register under Dr. Ellis, who 

 has general supervision of zoological research. Stu- 

 dents who are beginning research, or who work under 

 direction are recommended to choose subjects in the 

 following fields : 



a. The Fishes or Insects. Assistant Professor Eixis. 



b. The Arthropods. Assistant Professor Hegner. 



c. The Parasitic Worms. Dr. Cort. 



Days to be arranged. Two, four, six, or eight hours 

 credit. 



This course gives full credit to graduate students. 

 3 qquo3^ 7. This course is adapted to students who have had 

 no training in zoology. It consists of lectures, laboratory 

 work, and field observations. The object is to give the 

 student a thorough scientific training, together with in- 

 formation concerning the essential facts and fundamental 

 principles of animal life. The laboratory work consists 



