The Biological Station of the University 

 of Michigan 



A station for instruction and research in biology will be main- 

 tained by the University of Michigan, for the ninth season, as a 

 part of its regular Summer Session, during the eight weeks from 

 July 2 to August 24, inclusive, 191 7. 



LOCATION 



The Station is located near the Engineering Camp of the Uni- 

 versity on a tract of about 3060 acres of land owned by the Univer- 

 sity and stretching from Douglas Lake to Burt Lake in Cheboygan 

 County, Michigan, 17 miles south of the Straits of Mackinac. This 

 region, diversified by hills and valleys, was formerly covered by 

 forests of hardwoods and conifers. Small tracts of the former still 

 remain. It contains many lakes of clear water, unsurpassed in the 

 state for size, depth, and beauty of setting. The elevation of the 

 camp, between one and two hundred feet above Lake Michigan, 

 insures cool nights.* 



Six miles to the west of the camp on the Grand Rapids and In- 

 diana Railway is the nearest railroad station, Pellston, a town of 

 some 1,300 inhabitants, with a bank and a variety of retail establish- 

 ments. Topinabee, on the Michigan Central Railway, is 8 miles from 

 the camp. Fifteen miles to the northeast, also on the Michigan Cen- 

 tral Railway, is Cheboygan. A state roacl connects these points 

 and passes near the laboratory. Except for two small summer re- 

 sorts on Douglas Lake the region for miles about is almost unin- 

 habited. Douglas Lake is two and one-half miles wide and nearly 

 four miles long. Its shores are everywhere wooded, in some places 

 low and receding, in others rising in terraced bluffs 70 feet in height. 

 The beach is of clean sand and the lake bottom slopes gradually 

 into deep water. 



* During the seasons of 1914 and 1915 the total rainfall was between 

 three and four inches each year. The average temperature for July has 

 been 69 and for August 66°. The average daily maximum does not 

 exceed 8o°, and the minimum frequently drops to 45° during the night. 

 The general proportion of pleasant days is so high that field work is seldom 

 interrupted. During the past season the temperature was considerably 

 higher than usual, as was also the case throughout the United States, but 

 the nights were cool and the usual course of laboratory and field work 

 was not interfered with. 



