the region, it is impossible to study more than the most 
important ones. ‘These include the aspen association, the 
hardwood forest, the tamarack and sphagnum bog, the 
arbor-vitae bog, and the sand dunes, lagoons, and beaches. 
along the lake shore. ‘The course is open only to students 
who have taken Courses 1 or 2 in the Biological Station, 
or have had equivalent botanical experience elsewhere. 
Two half days of field work and one conference weekly. 
Two hours credit. Assistant Professor GLEASON. 
4. Special and Research Work in Botany.—Students 
who have taken Courses 2 or 3, or have had adequate 
botanical experience elsewhere, will find at the Biologi- 
cal Station excellent opportunities for further study or 
research in many lines of botany. Undergraduates, or 
eraduates beginning research and consequently needing 
personal direction, are advised to choose a problem along 
ecological or systematic lines. Advanced students or in- 
dependent investigators are free to choose. problems in 
any line of botany, and every effort is made to provide 
them with the necessary facilities and equipment for their 
work. <A list of subjects suggested for investigation in 
1913 will be sent on application. Two, four, six, or eight 
hours credit. Assistant Professor GLEASON. 
PHOTOGRAPHY. 
While no formal course in photography is offered, 
the camera is used in class work in many courses, and the 
student has an excellent opportunity to become familiar 
with the methods and uses of photography for scientific 
work. A well equipped dark-rcom is provided and may 
be used by students. The station is provided with a cam- 
era of the usual type, a reflecting camera, and a unique 
apparatus for sub-aquatic photography. Although stu- 
dents may use the station apparatus for scientific pur- 
poses, they should bring their own cameras for other 
uses. ‘Those exceeding 5x7 size are not suitable for 
