SCIENCE* 

 LIBRARY 



Mteconsin Geological anD natural Distort Survey. 



BOARD OF COMMISSIONERS. 



ROBEET M. LAFOLLETTE, 



Governor of the State. 



CHARLES R. VAN HISE, President, 



President of the University of Wisconsin. 



CHABLES P. CABY, Vice-President, 



State Superintendent of Public Instruction. 



CALVEBT SPENSLET, 



President of the Commissioners of Fisheries. 



JOHN J. DAVIS, Secretary, 



President of the Wisconsin Academy of Sciences, Arts, and 

 Letters. 



STAFF OF THE SURVEY. 



E. A. BIEGE, Director of the Survey. 



S. WEEDMAN, Geologist. 



Survey of Central and Northern Wisconsin. 



U. S. GEANT, Geologist. 



Survey of Southwestern Wisconsin. 



N. M. FENNEMAN, Geologist. 



Physical Geography of Lake Region. 



C. D. MARSH, Biologist. 

 Biology of Lakes. 



L. S. SMITH, Civil Engineer. 



Survey of Lakes and Rivers. 



W. D. SMITH, Field Assistant. 

 E. T. HANCOCK, Field Assistant. 



Consulting: Geologist. 

 T. C. CHAMBBELIN, Pleistocene Geology. 



vim 



