8 University of Michigan 



were secured on nights after the first. Larger traps took during 

 the whole period one raccoon, one New York weasel, and two 

 woodchucks. Several other woodchucks and a number of red 

 squirrels were seen. Ridges of moles were numerous, but no 

 specimens were secured. Tooth marks on an old, partly fallen • 

 linden were probably made, perhaps a number of years ago, by a 

 porcupine. 



Throughout the woods there are a number of small ravines. 

 These ravines are forested with trees mostly of the flood-plain 

 type, and there is evidence in many of the ravines, at least in 

 their lower parts, that flooding occurs in the ravine bottom during 

 the spring. 



Fifty mouse traps set August 26 in a large ravine north of the 

 county road took on the first day five northern white-footed 

 mice and one house mouse. Short-tailed shrews, more white- 

 footed mice, and pine voles were trapped on following days. Here 

 also red squirrels and a cottontail were seen, and tracks of raccoon 

 noted. Evidently the fauna is the same as that of the flood- 

 plain, with which it is here included. 



Beech-maple forest habitat: 



Blarina brcvicauda lalpoidcs. Short-tailed shrew. 7. 



Procyon lotor lotor. Raccoon. Tracks. 



Peromyscus leiicopus noveboracensis. Northern white-footed mouse. 86. 



Microtus pinelorum scalopsoides. Xorthern pine vole. 5. 



Zapus hudsonius hudsouius. Hudson Bay jumping mouse, i. 



Marmota vionax monax. Southern woodchuck. Burrows. 



Tamias siriatus lystcri. Northeastern chipmunk, i. 



Sciurits hiidsonicus loquax. Southern red squirrel. 10. 



Sciurus niger rufiventer. Fox squirrel. 7. 



Sylvilagus Jioridanus mearnsii. Mearns cottontail, i. 



The climax forest of the region is dominated by the beech, 

 Fagus grandifora, and the sugar maple, Acer saccharum. The 

 trees in this forest are very large, so that the forest crown is 

 high and the shade dense. Only a few small trees occur and 

 these are mostly young beeches and young sugar maples. The 



