THE WILSON BULLETIN 
A Quarterly Journal Devoted to 
The Study of Living Birds, 
The Official Organ of the Wilson Ornithological Chapter of 
the Agassiz Association. 
I TS AIM is to stimulate the study of living birds by the 
publication of field work done by members of the Chapter. 
This work is planned to contribute to one end and is, there- 
fore, cumulative. The June number will contain a winter census 
of the birds of Lorain County, Ohio, besides other matter of 
general interest and value. Each number contains not less than 
forty pages of matter of interest to the student of birds. If you 
are interested in bird study at first hand, and wish to learn how 
others are studying, you will not miss seeing a copy of this 
up-to-date bird magazine. 
Write for a Free Sample Copy to LYNDS JONES, Oberlltl, O. 
Cedap Point Ltake Liabo^atot^y. 
Offers Exceptional Opportunities for Study or Investigation During the 
Summer Months. 
T he laboratory is located on a beautiful site on Cedar Point near 
Sandusky giving convenient access to Lake Erie, to the marshes 
of Sandusky Bay, the river, islands, beach, forest and prairies, affording 
great variety of plant and animal life. Students are granted free trans- 
portation on the steamers of The Cedar Point Company. 
INSTRUCTION is offered in General Zoology, Botany, Entomology, 
Embryology, Icthyology, Ornithology, Plant Ecology, Morphology 
and Advanced Laboratory or Research Courses. 
FEES for the season are twenty dollars. 
EQUIPMENT includes tables, aquaria, dark room, boats^ dredges 
and collecting apparatus. Microscopes and other instruments are 
supplied from the university. 
INVESTIGATION. Properly qualified persons are given free 
opportunity for independent investigation. 
INSTRUCTORS. The staff includes regular members of the instruc- 
tion staff of the university. CREDITS given university students 
for courses completed. 
LECTURE AND LABORATORY COURSES BEGIN JUNE 27, 1904. 
For further information or special circular, address Pres. W. 0. Thompson, 
or Herbert Osborn, Director Lake Laporatory, Ohio State University, 
Columbus, Ohio. 
