New York State College of Agriculture At Cornell University Ithaca, N.Y. Library ‘ornell University Librar: Drainage in Michigan, MICHIGAN GEOLOGICAL AND BIOLOGICAL SURVEY Publication 28 Geological Series 23 DRAINAGE IN MICHIGAN DALTON G. MILLER AND PERRY T. SIMONS SENIOR DRAINAGE ENGINEERS, UNITED STATES DEPARTMENT OF AGRICULTURE PREPARED UNDER THE TERMS OF AN AGREEMENT BETWEEN THE MICHIGAN GEOLOGICAL AND BIOLOGICAL SURVEY R. C. ALLEN, Director - AND THE UNITED STATES DEPARTMENT OF AGRICULTURE, BUREAU OF PUBLIC ROADS LOGAN WALLER PAGE, Director PREPARED UNDER DIRECTION OF S. H. McCRORY, Chief of Drainage Investigations Rus) t EE LS Py J st 43 Suns