C N T E N T S 



Page. 



Introduction 7 



Summary 8 



Conclusions 9 



Extent and topography of the Rock River watershed 10 



Geology of Wisconsin and of the upper drainage basin of the Rock River 11 



Extent and character of the original and the present forests of the Wisconsin 



drainage basin 12 



Causes that have influenced the flow of the river 13 



The rainfall 18 



Artificial drainage 14 



Effects of changes in the soil cover 15 



Influence of the forest on evaporation 15 



Influence of the forest on water distribution 17 



Effects of changes in the character of the forest 18 



Remedies for present conditions 20 



Productive possibilities of the woodlot 21 



Common deficiencies of woodlots 22 



Quantity and quality of stock 22 



Effects of grazing , 23 



Effects of fire 23 



How to improve the woodlot 24 



Care of young growth 24 



Planting 25 



Thinning 25 



What kinds of trees to grow 26 



Sprout woods 26 



Cutting 26 



5 



