36 Unk'crsily of Michigan 



common in the shrubby clearings. Several adults fed com- 

 monly on the refuse from the camp. The stomach of a cap- 

 tured individual contained a considerable quantity of cooked 

 corn, spaghetti, and boiled ham. Three woodchucks were 

 noted at different times in hemlock forest along the lake shores. 



A half -grown juvenile was seen to swim the Ontonagon 

 River near its entrance to Cisco Lake. This was on July 10, 

 near noon, with bright sunshine. The river here is at least 

 75 yards in width, but has no perceptible current. 



Juveniles taken in traps were observed to extrude scent 

 glands from the anus when approached. These glands are 

 three in number, one on each side of the anus and one beneath. 

 They are small, whitish, and cup-shaped. Normally they lie 

 just inside the anus, but on excitement they are everted and 

 the fold of skin forming the edge of the anus is rolled out- 

 ward so that the glands lie outside. We detected a faint 

 musky odor which might have come from these glands. 



In the Little Girl's Point district several inhabited a wood- 

 pile in hemlock forest at the edge of a wide road. None were 

 found near Gogebic Lake. 



Bufamias borcalis ncglcctus. Lake Superior Chipmunk. 



Tall-sedge, i. Hemlock forest, i. 



Grassy-meadow, 3. Wet hardwood forest, i. 



Black spruce — tamarack bog, i. Shrub stage, 20. 



Paper birch — aspen stage, 2. 



Common in shrubby clearings and burns in the Cisco Lake 

 and Little Girl's Point regions. A few were taken in tall 

 sedges and grass not far from shrubs ; one was taken in a 

 small black spruce bog, about five yards from the surrounding 

 wet hardwood forest ; one was taken in hemlock forest near 

 the lake shore ; and one was seen in wet hardwood forest near 

 the lake shore. Not seen near Gogebic Lake. 



