12 Announcement of the 



species breeding here under wild conditions. There are conferences 

 when various ornithological topics are discussed. 



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

 arranged. Two hours credit. Professor Strong. 



Prerequisite: An elementary collegiate course in zoology, bot- 

 any or biology. 



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 107a 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 prob- 

 lems to engage their attention. Every encouragement in the direc- 

 tion of profitable research and the publication of results will be 

 given. Advanced students as well as independent investigators who 

 can foresee special needs are advised to notify the Director who will 

 endeavor to provide the necessary facilities. 



Students who are beginning research, or who work under direc- 

 tion are recommended to choose subjects in the following field : 



(a) The Birds. Professor Strong. 



(b) The Fishes or Insects. Assistant Professor Ellis. 



(c) The Parasitic Worms. Assistant Professor La Rue. 

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



Assistant Professor La Rue, Professor Strong, Assistant Professor 

 Ellis. 



Prerequisite: Admission only by permission of the instructors 

 in charge. 



This course gives full credit to graduates. 



Botany 



102. Field and Forest Botany. — Although this course is accept- 

 ed in lieu of elementary collegiate botany as prerequisite for other 

 courses in botany at the Station, it differs widely both in material 

 and method from the usual beginning course in botany. It may 

 with profit be elected by those who have had a course in elementary 

 botany as well as by those who have had work in zoology or biology. 

 The work is given principally in the field and is for the most part 

 concerned with the natural history of the groups best represented 

 in the locality. Students will collect and identify and thus become 

 familiar with the commoner species and will study in the field the 

 trees, aquatics, ferns, insectivorous plants, orchids and some herb- 

 aceous plants. Among subjects which will be dealt with are the ef- 

 fect of external factors, such as soil, water and light upon the 

 vegetation, adaptation of plants to winter conditions, cross pollina- 

 tion, and dissemination of seeds. In connection with this course op- 



