Announcement of the 



This course gives two hours credit to graduates, who may 

 obtain full credit by registration in Course 103a. 



105. The Natural History of Insects. — This course is intended 

 to give the student a general acquaintance with the insects of the 

 region and to afford opportunity for the study of the various forms 

 in their native habitats. Field 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. Their 

 economic relations are also considered. Some work on the morphol- 

 ogy and physiology of insects is included. Instruction is given in 

 the approved methods of collecting and preserving insects in all stages 

 of development. Opportunity is afforded to form individual collec- 

 tions of properly determined specimens. Familiarity with the ento- 

 mological literature is encouraged. 



Monday. Two hours credit. Assistant Professor Ellis. 

 Prerequisite : Elementary collegiate zoology. 



This course gives two hours credit to graduates. Students 

 desiring full credit, must complete extra work, and will register for 

 Course 105*2. 



107. The Natural History of Birds. — Special attention given to 

 methods of field work. The course, treating of birds with particular 

 reference to their environment, includes identification by eye and 

 ear, observations on habitat preferences, food habits, nesting activi- 

 ties, and the early autumnal migration movements. In the confer- 

 ences illustrated by lantern slides, attention is given to the position 

 of birds in the animal kingdom, some of the adaptations to particular 

 modes of life, their economic relations, and the facts and theories of 

 their distribution and annual migration movements. The bird fauna 

 is abundant and the opportunities for the study of some of the 

 northern species are especially good. 



Saturday morning, and two or three early morning trips to be 

 arranged. Two hours credit. Professor Strong. 



No prerequisite. 



Course 107 does not give credit to graduates. Those who desire 

 credit, or who wish to carry on further work on birds, may elect 

 either 107^ or Course 109 with Professor Strong. 



109. Special and Research Work in Zoology. — Students who do 

 not find under the formally announced courses in zoology, work suited 

 to their needs or attainments, may, if properly prepared, elect Course 

 109. Those qualified to work independently will find numerous 

 problems to engage their attention, or will be guided along the lines 

 of interest represented by the several members of the staff, and indi- 

 cated in the courses formally announced. Every encouragement in 

 111 direction of profitable research and the publication of results will 



