CONTENTS 



Page 



Materials and methods 77 



Production trends in Lake Michigan, 1879-1949 78 



Production in State of Michigan waters, 1891-1908 and 1929^9 81 



Abundance in State of Michigan waters, 1929-49 88 



Fishmg intensity in State of Michigan waters, 1929^9 90 



Relations of production, abundance, and fishing intensity 92 



Summary 94 



Literatm'e cited 95 



II 



