610 The American Naturalist. [June, 
student of natural history and to those who love beautiful scenery. 
The facilities of the University and its equipment in all lines for car- 
rying on microscopical work add to the attractiveness of Ithaca as a 
place of meeting. 
The University buildings, which will be held at the disposal of the 
Society, are especially adapted for the formal presentation of papers, 
blackboard illustrations, hanging of diagrams, etc., as well as for any 
demonstration that authors may desire to make. The armory is very 
convieniently located both for the University and for the city, and a 
soiree there can hardly fail to be a great success. 
Besides the attraction of papers and demonstrations by members, 
nearly all the opticians have expressed not only a willingness but a 
desire to be present and make an exhibit of their microscopes and 
microscopical apparatus, thereby affording the members an opportunity 
to see all the new and standard apparatus. 
A special feature of the coming meeting will be the setting apart of 
one or more sessions for the reading of papers on methods and demon- 
stration of special or new methods. The chairman of the local com- 
mittee, Professor W. W. Rowlee, or the President, Prof. S. H. Page, 
will be glad to receive requests from those who desire to have some 
specially difficult method or structure elucidated, and an effort will be 
made to get some member particularly expert in such subject to 
demonstrate it before the Society. 
Summer Zoological Laboratory of the Indiana University 
will be located at Vawter Park, the highest point on the southwestern 
shore of Lake Wawasee or Turkey in Kosciusko county. Wawasee 
is about nine miles long by three miles wide. In the immediate neigh- 
borhood are many lakes, some drained into Lake Michigan, others 
into the Wabash; a short distance to the east is the basin of Lake 
Erie and still a shorter distance to the west is the Illinois River basin. 
An hour’s ride from the station over the moraine separating the Miss- 
issippi system from the St. Lawrence system will bring us to Webster, 
Tippecanoe and the Barber Lakes of the former system. 
ResearcH.—The main object of the station will be the study of 
variation. For this purpose a small lake will present a limited, well 
circumscribed locality, within which the differences of environmental 
influences will be reduced toa minimam. The study will consist in 
the determination of the extent of variation in the non-migratory 
vertebrates, the kind of variation whether continuous or discontinuous, 
the quantitative variation, and the direction of variation. In this way 
