U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF FORESTRY- BULLETIN No. 44. k 



GIFFORD PINCHOT, Forester. 



THE DIMINISHED FLOW OF THE ROCK RIVER 

 IN WISCONSIN AND ILLINOIS, 



ITS RELATION TO THE SURROUNDING FORESTS. 



BY 



G. FREDERICK SCHWARZ, 



Field Assistant, Bureau of Forestry. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE, 



1903. 



